57732378 has 32 divisors (see below), whose sum is σ = 127092672. Its totient is φ = 17337600.

The previous prime is 57732373. The next prime is 57732397. The reversal of 57732378 is 87323775.

It is not an unprimeable number, because it can be changed into a prime (57732373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3588 + ... + 11328.

It is an arithmetic number, because the mean of its divisors is an integer number (3971646).

Almost surely, 2^57732378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57732378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63546336).

57732378 is an abundant number, since it is smaller than the sum of its proper divisors (69360294).

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

57732378 is a wasteful number, since it uses less digits than its factorization.

57732378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7870.

The product of its digits is 246960, while the sum is 42.

The square root of 57732378 is about 7598.1825458461. The cubic root of 57732378 is about 386.4913829318.

The spelling of 57732378 in words is "fifty-seven million, seven hundred thirty-two thousand, three hundred seventy-eight".