18012608 has 28 divisors (see below), whose sum is σ = 37627560. Its totient is φ = 8531712.

The previous prime is 18012583. The next prime is 18012613. The reversal of 18012608 is 80621081.

It is a congruent number.

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, 6191 + ... + 8622.

Almost surely, 2^18012608 is an apocalyptic number.

It is an amenable number.

18012608 is an abundant number, since it is smaller than the sum of its proper divisors (19614952).

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

18012608 is a wasteful number, since it uses less digits than its factorization.

18012608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14844 (or 14834 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 18012608 is about 4244.1262940681. The cubic root of 18012608 is about 262.1353145982.

Adding to 18012608 its reverse (80621081), we get a palindrome (98633689).

The spelling of 18012608 in words is "eighteen million, twelve thousand, six hundred eight".