22300222440 has 64 divisors (see below), whose sum is σ = 67842956160. Its totient is φ = 5862967040.

The previous prime is 22300222409. The next prime is 22300222501. The reversal of 22300222440 is 4422200322.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1300179 + ... + 1317218.

It is an arithmetic number, because the mean of its divisors is an integer number (1060046190).

Almost surely, 2^22300222440 is an apocalyptic number.

22300222440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22300222440 is an abundant number, since it is smaller than the sum of its proper divisors (45542733720).

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

22300222440 is a wasteful number, since it uses less digits than its factorization.

22300222440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2617482 (or 2617478 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

Adding to 22300222440 its reverse (4422200322), we get a palindrome (26722422762).

The spelling of 22300222440 in words is "twenty-two billion, three hundred million, two hundred twenty-two thousand, four hundred forty".