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2440442222440 = 23561011055561
BaseRepresentation
bin100011100000110101101…
…100010001011101101000
322122022012121120222121021
4203200311230101131220
5304441011202104230
65105042414222224
7341213301424105
oct43406554213550
98568177528537
102440442222440
11860a93015512
12334b831b4974
1314919575a841
1486191c55aac
1543735111c7a
hex23835b11768

2440442222440 has 16 divisors (see below), whose sum is σ = 5490995000580. Its totient is φ = 976176888960.

The previous prime is 2440442222417. The next prime is 2440442222447. The reversal of 2440442222440 is 442222440442.

It can be written as a sum of positive squares in 2 ways, for example, as 2425974462916 + 14467759524 = 1557554^2 + 120282^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2440442222396 and 2440442222405.

It is not an unprimeable number, because it can be changed into a prime (2440442222447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30505527741 + ... + 30505527820.

Almost surely, 22440442222440 is an apocalyptic number.

2440442222440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2440442222440 is an abundant number, since it is smaller than the sum of its proper divisors (3050552778140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2440442222440 is a wasteful number, since it uses less digits than its factorization.

2440442222440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61011055572 (or 61011055568 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 34.

Adding to 2440442222440 its reverse (442222440442), we get a palindrome (2882664662882).

The spelling of 2440442222440 in words is "two trillion, four hundred forty billion, four hundred forty-two million, two hundred twenty-two thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 61011055561 122022111122 244044222244 305055277805 488088444488 610110555610 1220221111220 2440442222440