11811204 has 24 divisors (see below), whose sum is σ = 30621920. Its totient is φ = 3937032.

The previous prime is 11811203. The next prime is 11811221. The reversal of 11811204 is 40211811.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11811203) 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, 54574 + ... + 54789.

Almost surely, 2^11811204 is an apocalyptic number.

It is an amenable number.

11811204 is an abundant number, since it is smaller than the sum of its proper divisors (18810716).

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

11811204 is a wasteful number, since it uses less digits than its factorization.

11811204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109376 (or 109368 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 11811204 is about 3436.7432257880. The cubic root of 11811204 is about 227.7358436563.

The spelling of 11811204 in words is "eleven million, eight hundred eleven thousand, two hundred four".