57994440 has 128 divisors (see below), whose sum is σ = 203040000. Its totient is φ = 13246464.

The previous prime is 57994439. The next prime is 57994471. The reversal of 57994440 is 4449975.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 57994392 and 57994401.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40456 + ... + 41864.

It is an arithmetic number, because the mean of its divisors is an integer number (1586250).

Almost surely, 2^57994440 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 57994440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101520000).

57994440 is an abundant number, since it is smaller than the sum of its proper divisors (145045560).

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

57994440 is a wasteful number, since it uses less digits than its factorization.

57994440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444 (or 1426 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 57994440 is about 7615.4080652320. The cubic root of 57994440 is about 387.0752946594.

The spelling of 57994440 in words is "fifty-seven million, nine hundred ninety-four thousand, four hundred forty".