18936484 has 24 divisors (see below), whose sum is σ = 38001600. Its totient is φ = 8088096.

The previous prime is 18936451. The next prime is 18936517. The reversal of 18936484 is 48463981.

It is an interprime number because it is at equal distance from previous prime (18936451) and next prime (18936517).

It is a self number, because there is not a number n which added to its sum of digits gives 18936484.

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, 8742 + ... + 10690.

It is an arithmetic number, because the mean of its divisors is an integer number (1583400).

Almost surely, 2^18936484 is an apocalyptic number.

18936484 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18936484 is an abundant number, since it is smaller than the sum of its proper divisors (19065116).

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

18936484 is a wasteful number, since it uses less digits than its factorization.

18936484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307 (or 2305 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 18936484 is about 4351.6070594667. The cubic root of 18936484 is about 266.5424887111.

The spelling of 18936484 in words is "eighteen million, nine hundred thirty-six thousand, four hundred eighty-four".