18113892 has 12 divisors (see below), whose sum is σ = 42265776. Its totient is φ = 6037960.

The previous prime is 18113881. The next prime is 18113929. The reversal of 18113892 is 29831181.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×18113892² = 656226166775328, which contains 22 as substring.

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, 754734 + ... + 754757.

It is an arithmetic number, because the mean of its divisors is an integer number (3522148).

Almost surely, 2^18113892 is an apocalyptic number.

18113892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18113892 is an abundant number, since it is smaller than the sum of its proper divisors (24151884).

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

18113892 is a wasteful number, since it uses less digits than its factorization.

18113892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509498 (or 1509496 counting only the distinct ones).

The product of its digits is 3456, while the sum is 33.

The square root of 18113892 is about 4256.0418231028. The cubic root of 18113892 is about 262.6257211837.

The spelling of 18113892 in words is "eighteen million, one hundred thirteen thousand, eight hundred ninety-two".