57088444 has 24 divisors (see below), whose sum is σ = 114645888. Its totient is φ = 24366000.

The previous prime is 57088439. The next prime is 57088487. The reversal of 57088444 is 44488075.

It is a super-2 number, since 2×57088444² = 6518180876682272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57088397 and 57088406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2967 + ... + 11089.

It is an arithmetic number, because the mean of its divisors is an integer number (4776912).

Almost surely, 2^57088444 is an apocalyptic number.

It is an amenable number.

57088444 is an abundant number, since it is smaller than the sum of its proper divisors (57557444).

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

57088444 is a wasteful number, since it uses less digits than its factorization.

57088444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8385 (or 8383 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 40.

The square root of 57088444 is about 7555.6895118844. The cubic root of 57088444 is about 385.0490610442.

The spelling of 57088444 in words is "fifty-seven million, eighty-eight thousand, four hundred forty-four".