57087234 has 64 divisors (see below), whose sum is σ = 131604480. Its totient is φ = 18331920.

The previous prime is 57087227. The next prime is 57087253. The reversal of 57087234 is 43278075.

57087234 is a `hidden beast` number, since 570 + 87 + 2 + 3 + 4 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210519 + ... + 210789.

It is an arithmetic number, because the mean of its divisors is an integer number (2056320).

Almost surely, 2^57087234 is an apocalyptic number.

57087234 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 57087234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65802240).

57087234 is an abundant number, since it is smaller than the sum of its proper divisors (74517246).

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

57087234 is a wasteful number, since it uses less digits than its factorization.

57087234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 57087234 is about 7555.6094393503. The cubic root of 57087234 is about 385.0463406299.

The spelling of 57087234 in words is "fifty-seven million, eighty-seven thousand, two hundred thirty-four".