18804956 has 6 divisors (see below), whose sum is σ = 32908680. Its totient is φ = 9402476.

The previous prime is 18804943. The next prime is 18804959. The reversal of 18804956 is 65940881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18804959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2350616 + ... + 2350623.

It is an arithmetic number, because the mean of its divisors is an integer number (5484780).

Almost surely, 2^18804956 is an apocalyptic number.

It is an amenable number.

18804956 is a deficient number, since it is larger than the sum of its proper divisors (14103724).

18804956 is a wasteful number, since it uses less digits than its factorization.

18804956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4701243 (or 4701241 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 18804956 is about 4336.4681481593. The cubic root of 18804956 is about 265.9239423003.

The spelling of 18804956 in words is "eighteen million, eight hundred four thousand, nine hundred fifty-six".