44640356 has 6 divisors (see below), whose sum is σ = 78120630. Its totient is φ = 22320176.

The previous prime is 44640331. The next prime is 44640359. The reversal of 44640356 is 65304644.

It can be written as a sum of positive squares in only one way, i.e., 44622400 + 17956 = 6680^2 + 134^2 .

It is a super-2 number, since 2×44640356² = 3985522767613472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (44640359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5580041 + ... + 5580048.

It is an arithmetic number, because the mean of its divisors is an integer number (13020105).

Almost surely, 2^44640356 is an apocalyptic number.

It is an amenable number.

44640356 is a deficient number, since it is larger than the sum of its proper divisors (33480274).

44640356 is a wasteful number, since it uses less digits than its factorization.

44640356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11160093 (or 11160091 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 44640356 is about 6681.3438767960. The cubic root of 44640356 is about 354.7392279191.

The spelling of 44640356 in words is "forty-four million, six hundred forty thousand, three hundred fifty-six".