244722340 has 24 divisors (see below), whose sum is σ = 516894840. Its totient is φ = 97321728.

The previous prime is 244722319. The next prime is 244722341. The reversal of 244722340 is 43227442.

It can be written as a sum of positive squares in 4 ways, for example, as 84750436 + 159971904 = 9206^2 + 12648^2 .

It is a junction number, because it is equal to n+sod(n) for n = 244722299 and 244722308.

It is not an unprimeable number, because it can be changed into a prime (244722341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31905 + ... + 38824.

It is an arithmetic number, because the mean of its divisors is an integer number (21537285).

Almost surely, 2^244722340 is an apocalyptic number.

244722340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244722340 is an abundant number, since it is smaller than the sum of its proper divisors (272172500).

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

244722340 is a wasteful number, since it uses less digits than its factorization.

244722340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70911 (or 70909 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 28.

The square root of 244722340 is about 15643.6038047504. The cubic root of 244722340 is about 625.4960030654.

Adding to 244722340 its reverse (43227442), we get a palindrome (287949782).

The spelling of 244722340 in words is "two hundred forty-four million, seven hundred twenty-two thousand, three hundred forty".