57534440 has 32 divisors (see below), whose sum is σ = 131652000. Its totient is φ = 22622784.

The previous prime is 57534397. The next prime is 57534467. The reversal of 57534440 is 4443575.

It is a super-2 number, since 2×57534440² = 6620423572227200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57534397 and 57534406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9830 + ... + 14549.

It is an arithmetic number, because the mean of its divisors is an integer number (4114125).

Almost surely, 2^57534440 is an apocalyptic number.

It is an amenable number.

57534440 is an abundant number, since it is smaller than the sum of its proper divisors (74117560).

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

57534440 is a wasteful number, since it uses less digits than its factorization.

57534440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24449 (or 24445 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 57534440 is about 7585.1460104602. The cubic root of 57534440 is about 386.0491762631.

The spelling of 57534440 in words is "fifty-seven million, five hundred thirty-four thousand, four hundred forty".