18312696 has 64 divisors (see below), whose sum is σ = 51300000. Its totient is φ = 6052608.

The previous prime is 18312683. The next prime is 18312731. The reversal of 18312696 is 69621381.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 18312696.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31900 + ... + 32468.

Almost surely, 2^18312696 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 18312696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25650000).

18312696 is an abundant number, since it is smaller than the sum of its proper divisors (32987304).

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

18312696 is a wasteful number, since it uses less digits than its factorization.

18312696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733 (or 723 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 18312696 is about 4279.3335929792. Note that the first 3 decimals coincide. The cubic root of 18312696 is about 263.5830194236.

The spelling of 18312696 in words is "eighteen million, three hundred twelve thousand, six hundred ninety-six".