57828402 has 12 divisors (see below), whose sum is σ = 125294910. Its totient is φ = 19276128.

The previous prime is 57828391. The next prime is 57828403. The reversal of 57828402 is 20482875.

It is a happy number.

57828402 is a `hidden beast` number, since 578 + 2 + 84 + 0 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 51279921 + 6548481 = 7161^2 + 2559^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (57828403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1606327 + ... + 1606362.

Almost surely, 2^57828402 is an apocalyptic number.

57828402 is an abundant number, since it is smaller than the sum of its proper divisors (67466508).

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

57828402 is a wasteful number, since it uses less digits than its factorization.

57828402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3212697 (or 3212694 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 57828402 is about 7604.4988000525. The cubic root of 57828402 is about 386.7055428939.

The spelling of 57828402 in words is "fifty-seven million, eight hundred twenty-eight thousand, four hundred two".