57640304 has 20 divisors (see below), whose sum is σ = 111901320. Its totient is φ = 28762560.

The previous prime is 57640249. The next prime is 57640307. The reversal of 57640304 is 40304675.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57640307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5327 + ... + 11985.

It is an arithmetic number, because the mean of its divisors is an integer number (5595066).

Almost surely, 2^57640304 is an apocalyptic number.

It is an amenable number.

57640304 is a deficient number, since it is larger than the sum of its proper divisors (54261016).

57640304 is a wasteful number, since it uses less digits than its factorization.

57640304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7208 (or 7202 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 57640304 is about 7592.1211792226. The cubic root of 57640304 is about 386.2858094246.

Adding to 57640304 its reverse (40304675), we get a palindrome (97944979).

The spelling of 57640304 in words is "fifty-seven million, six hundred forty thousand, three hundred four".