18113270 has 32 divisors (see below), whose sum is σ = 39225600. Its totient is φ = 5882976.

The previous prime is 18113257. The next prime is 18113299. The reversal of 18113270 is 7231181.

It is a happy number.

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, 5480 + ... + 8139.

It is an arithmetic number, because the mean of its divisors is an integer number (1225800).

Almost surely, 2^18113270 is an apocalyptic number.

18113270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18113270 is an abundant number, since it is smaller than the sum of its proper divisors (21112330).

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

18113270 is a wasteful number, since it uses less digits than its factorization.

18113270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13652.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 18113270 is about 4255.9687498853. The cubic root of 18113270 is about 262.6227151102.

The spelling of 18113270 in words is "eighteen million, one hundred thirteen thousand, two hundred seventy".