57996440 has 16 divisors (see below), whose sum is σ = 130492080. Its totient is φ = 23198560.

The previous prime is 57996437. The next prime is 57996467. The reversal of 57996440 is 4469975.

It is a junction number, because it is equal to n+sod(n) for n = 57996391 and 57996400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 724916 + ... + 724995.

It is an arithmetic number, because the mean of its divisors is an integer number (8155755).

Almost surely, 2^57996440 is an apocalyptic number.

It is an amenable number.

57996440 is an abundant number, since it is smaller than the sum of its proper divisors (72495640).

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

57996440 is a wasteful number, since it uses less digits than its factorization.

57996440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449922 (or 1449918 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 57996440 is about 7615.5393768268. The cubic root of 57996440 is about 387.0797441761.

The spelling of 57996440 in words is "fifty-seven million, nine hundred ninety-six thousand, four hundred forty".