18113392 has 40 divisors (see below), whose sum is σ = 38716272. Its totient is φ = 8140800.

The previous prime is 18113353. The next prime is 18113411. The reversal of 18113392 is 29331181.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 18113392.

It is a congruent number.

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, 16542 + ... + 17602.

Almost surely, 2^18113392 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 18113392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19358136).

18113392 is an abundant number, since it is smaller than the sum of its proper divisors (20602880).

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

18113392 is a wasteful number, since it uses less digits than its factorization.

18113392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177 (or 1171 counting only the distinct ones).

The product of its digits is 1296, while the sum is 28.

The square root of 18113392 is about 4255.9830826731. The cubic root of 18113392 is about 262.6233047313.

The spelling of 18113392 in words is "eighteen million, one hundred thirteen thousand, three hundred ninety-two".