18804936 has 32 divisors (see below), whose sum is σ = 47332800. Its totient is φ = 6225600.

The previous prime is 18804913. The next prime is 18804943. The reversal of 18804936 is 63940881.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 18804894 and 18804903.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1030 + ... + 6218.

It is an arithmetic number, because the mean of its divisors is an integer number (1479150).

Almost surely, 2^18804936 is an apocalyptic number.

It is an amenable number.

18804936 is an abundant number, since it is smaller than the sum of its proper divisors (28527864).

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

18804936 is a wasteful number, since it uses less digits than its factorization.

18804936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5349 (or 5345 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 18804936 is about 4336.4658421346. The cubic root of 18804936 is about 265.9238480258.

The spelling of 18804936 in words is "eighteen million, eight hundred four thousand, nine hundred thirty-six".