57640292 has 6 divisors (see below), whose sum is σ = 100870518. Its totient is φ = 28820144.

The previous prime is 57640249. The next prime is 57640307. The reversal of 57640292 is 29204675.

It can be written as a sum of positive squares in only one way, i.e., 52649536 + 4990756 = 7256^2 + 2234^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7205033 + ... + 7205040.

It is an arithmetic number, because the mean of its divisors is an integer number (16811753).

Almost surely, 2^57640292 is an apocalyptic number.

It is an amenable number.

57640292 is a deficient number, since it is larger than the sum of its proper divisors (43230226).

57640292 is a wasteful number, since it uses less digits than its factorization.

57640292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14410077 (or 14410075 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 57640292 is about 7592.1203889296. The cubic root of 57640292 is about 386.2857826179.

The spelling of 57640292 in words is "fifty-seven million, six hundred forty thousand, two hundred ninety-two".