18804922 has 4 divisors (see below), whose sum is σ = 28207386. Its totient is φ = 9402460.

The previous prime is 18804913. The next prime is 18804943. The reversal of 18804922 is 22940881.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 17065161 + 1739761 = 4131^2 + 1319^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4701229 + ... + 4701232.

Almost surely, 2^18804922 is an apocalyptic number.

18804922 is a deficient number, since it is larger than the sum of its proper divisors (9402464).

18804922 is an equidigital number, since it uses as much as digits as its factorization.

18804922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9402463.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 18804922 is about 4336.4642279166. The cubic root of 18804922 is about 265.9237820336.

The spelling of 18804922 in words is "eighteen million, eight hundred four thousand, nine hundred twenty-two".