18013376 has 28 divisors (see below), whose sum is σ = 36716208. Its totient is φ = 8762112.

The previous prime is 18013367. The next prime is 18013381. The reversal of 18013376 is 67331081.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1436 + ... + 6171.

Almost surely, 2^18013376 is an apocalyptic number.

18013376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18013376 is an abundant number, since it is smaller than the sum of its proper divisors (18702832).

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

18013376 is an equidigital number, since it uses as much as digits as its factorization.

18013376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7656 (or 7646 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 18013376 is about 4244.2167710898. The cubic root of 18013376 is about 262.1390400824.

The spelling of 18013376 in words is "eighteen million, thirteen thousand, three hundred seventy-six".