57705432 has 32 divisors (see below), whose sum is σ = 151857600. Its totient is φ = 18222624.

The previous prime is 57705419. The next prime is 57705457. The reversal of 57705432 is 23450775.

It is a junction number, because it is equal to n+sod(n) for n = 57705393 and 57705402.

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, 62818 + ... + 63729.

It is an arithmetic number, because the mean of its divisors is an integer number (4745550).

Almost surely, 2^57705432 is an apocalyptic number.

It is an amenable number.

57705432 is an abundant number, since it is smaller than the sum of its proper divisors (94152168).

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

57705432 is a wasteful number, since it uses less digits than its factorization.

57705432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126575 (or 126571 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 33.

The square root of 57705432 is about 7596.4091516979. The cubic root of 57705432 is about 386.4312432675.

The spelling of 57705432 in words is "fifty-seven million, seven hundred five thousand, four hundred thirty-two".