11640904 has 16 divisors (see below), whose sum is σ = 23811120. Its totient is φ = 5291280.

The previous prime is 11640899. The next prime is 11640931. The reversal of 11640904 is 40904611.

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, 66054 + ... + 66229.

It is an arithmetic number, because the mean of its divisors is an integer number (1488195).

Almost surely, 2^11640904 is an apocalyptic number.

It is an amenable number.

11640904 is an abundant number, since it is smaller than the sum of its proper divisors (12170216).

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

11640904 is a wasteful number, since it uses less digits than its factorization.

11640904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132300 (or 132296 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 11640904 is about 3411.8769028205. The cubic root of 11640904 is about 226.6360031569.

It can be divided in two parts, 11640 and 904, that added together give a square (12544 = 112²).

The spelling of 11640904 in words is "eleven million, six hundred forty thousand, nine hundred four".