18270474 has 16 divisors (see below), whose sum is σ = 36830208. Its totient is φ = 6041952.

The previous prime is 18270467. The next prime is 18270479. The reversal of 18270474 is 47407281.

It is not an unprimeable number, because it can be changed into a prime (18270479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11227 + ... + 12750.

It is an arithmetic number, because the mean of its divisors is an integer number (2301888).

Almost surely, 2^18270474 is an apocalyptic number.

18270474 is an abundant number, since it is smaller than the sum of its proper divisors (18559734).

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

18270474 is a wasteful number, since it uses less digits than its factorization.

18270474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24109.

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 18270474 is about 4274.3975014030. The cubic root of 18270474 is about 263.3802900116.

The spelling of 18270474 in words is "eighteen million, two hundred seventy thousand, four hundred seventy-four".