57842728 has 16 divisors (see below), whose sum is σ = 108568980. Its totient is φ = 28891008.

The previous prime is 57842693. The next prime is 57842731. The reversal of 57842728 is 82724875.

It can be written as a sum of positive squares in 2 ways, for example, as 46539684 + 11303044 = 6822^2 + 3362^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5700 + ... + 12172.

Almost surely, 2^57842728 is an apocalyptic number.

It is an amenable number.

57842728 is a deficient number, since it is larger than the sum of its proper divisors (50726252).

57842728 is a wasteful number, since it uses less digits than its factorization.

57842728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7596 (or 7592 counting only the distinct ones).

The product of its digits is 250880, while the sum is 43.

The square root of 57842728 is about 7605.4406841418. The cubic root of 57842728 is about 386.7374734909.

The spelling of 57842728 in words is "fifty-seven million, eight hundred forty-two thousand, seven hundred twenty-eight".