18059244 has 36 divisors (see below), whose sum is σ = 49019544. Its totient is φ = 5159616.

The previous prime is 18059243. The next prime is 18059263. The reversal of 18059244 is 44295081.

It is a super-2 number, since 2×18059244² = 652272587703072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18059243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14769 + ... + 15944.

It is an arithmetic number, because the mean of its divisors is an integer number (1361654).

Almost surely, 2^18059244 is an apocalyptic number.

18059244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18059244 is an abundant number, since it is smaller than the sum of its proper divisors (30960300).

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

18059244 is a wasteful number, since it uses less digits than its factorization.

18059244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30734 (or 30725 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 18059244 is about 4249.6169239121. The cubic root of 18059244 is about 262.3613490005.

The spelling of 18059244 in words is "eighteen million, fifty-nine thousand, two hundred forty-four".