18914304 has 88 divisors (see below), whose sum is σ = 51879168. Its totient is φ = 6123520.

The previous prime is 18914299. The next prime is 18914327. The reversal of 18914304 is 40341981.

It is a happy number.

It is a congruent number.

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, 144319 + ... + 144449.

It is an arithmetic number, because the mean of its divisors is an integer number (589536).

Almost surely, 2^18914304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18914304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25939584).

18914304 is an abundant number, since it is smaller than the sum of its proper divisors (32964864).

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

18914304 is a wasteful number, since it uses less digits than its factorization.

18914304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 18914304 is about 4349.0578290016. The cubic root of 18914304 is about 266.4383824072.

The spelling of 18914304 in words is "eighteen million, nine hundred fourteen thousand, three hundred four".