18089274 has 16 divisors (see below), whose sum is σ = 41347008. Its totient is φ = 5168352.

The previous prime is 18089261. The next prime is 18089287. The reversal of 18089274 is 47298081.

It is an interprime number because it is at equal distance from previous prime (18089261) and next prime (18089287).

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, 215307 + ... + 215390.

It is an arithmetic number, because the mean of its divisors is an integer number (2584188).

Almost surely, 2^18089274 is an apocalyptic number.

18089274 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18089274 is an abundant number, since it is smaller than the sum of its proper divisors (23257734).

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

18089274 is a wasteful number, since it uses less digits than its factorization.

18089274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430709.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 18089274 is about 4253.1487159515. The cubic root of 18089274 is about 262.5066918929.

The spelling of 18089274 in words is "eighteen million, eighty-nine thousand, two hundred seventy-four".