57640030 has 32 divisors (see below), whose sum is σ = 125551296. Its totient is φ = 18599424.

The previous prime is 57640027. The next prime is 57640061. The reversal of 57640030 is 3004675.

It is a junction number, because it is equal to n+sod(n) for n = 57639977 and 57640004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23029 + ... + 25408.

It is an arithmetic number, because the mean of its divisors is an integer number (3923478).

Almost surely, 2^57640030 is an apocalyptic number.

57640030 is an abundant number, since it is smaller than the sum of its proper divisors (67911266).

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

57640030 is a wasteful number, since it uses less digits than its factorization.

57640030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48468.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 57640030 is about 7592.1031341783. The cubic root of 57640030 is about 386.2851973385.

The spelling of 57640030 in words is "fifty-seven million, six hundred forty thousand, thirty".