57828738 has 16 divisors (see below), whose sum is σ = 126171936. Its totient is φ = 17523840.

The previous prime is 57828731. The next prime is 57828763. The reversal of 57828738 is 83782875.

It is not an unprimeable number, because it can be changed into a prime (57828731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438031 + ... + 438162.

It is an arithmetic number, because the mean of its divisors is an integer number (7885746).

Almost surely, 2^57828738 is an apocalyptic number.

57828738 is an abundant number, since it is smaller than the sum of its proper divisors (68343198).

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

57828738 is a wasteful number, since it uses less digits than its factorization.

57828738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876209.

The product of its digits is 752640, while the sum is 48.

The square root of 57828738 is about 7604.5208922062. The cubic root of 57828738 is about 386.7062918501.

The spelling of 57828738 in words is "fifty-seven million, eight hundred twenty-eight thousand, seven hundred thirty-eight".