57911040 has 216 divisors, whose sum is σ = 219059568. Its totient is φ = 14008320.

The previous prime is 57910997. The next prime is 57911041. The reversal of 57911040 is 4011975.

57911040 = 999² + 1000² + ... + 1053².

It is a junction number, because it is equal to n+sod(n) for n = 57910995 and 57911013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57911041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126492 + ... + 126948.

Almost surely, 2^57911040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57911040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109529784).

57911040 is an abundant number, since it is smaller than the sum of its proper divisors (161148528).

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

57911040 is a wasteful number, since it uses less digits than its factorization.

57911040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 57911040 is about 7609.9303544776. The cubic root of 57911040 is about 386.8896586653.

The spelling of 57911040 in words is "fifty-seven million, nine hundred eleven thousand, forty".