18810804 has 12 divisors (see below), whose sum is σ = 43891904. Its totient is φ = 6270264.

The previous prime is 18810797. The next prime is 18810829. The reversal of 18810804 is 40801881.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 783772 + ... + 783795.

Almost surely, 2^18810804 is an apocalyptic number.

It is an amenable number.

18810804 is an abundant number, since it is smaller than the sum of its proper divisors (25081100).

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

18810804 is a wasteful number, since it uses less digits than its factorization.

18810804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567574 (or 1567572 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 30.

The square root of 18810804 is about 4337.1423771880. The cubic root of 18810804 is about 265.9515052831.

The spelling of 18810804 in words is "eighteen million, eight hundred ten thousand, eight hundred four".