18312708 has 24 divisors (see below), whose sum is σ = 43369312. Its totient is φ = 6012864.

The previous prime is 18312683. The next prime is 18312731. The reversal of 18312708 is 80721381.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10585 + ... + 12192.

Almost surely, 2^18312708 is an apocalyptic number.

It is an amenable number.

18312708 is an abundant number, since it is smaller than the sum of its proper divisors (25056604).

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

18312708 is a wasteful number, since it uses less digits than its factorization.

18312708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22851 (or 22849 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 18312708 is about 4279.3349950664. The cubic root of 18312708 is about 263.5830769974.

The spelling of 18312708 in words is "eighteen million, three hundred twelve thousand, seven hundred eight".