18361008 has 30 divisors (see below), whose sum is σ = 51385724. Its totient is φ = 6120288.

The previous prime is 18360997. The next prime is 18361051. The reversal of 18361008 is 80016381.

It is a super-2 number, since 2×18361008² = 674253229552128, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63610 + ... + 63897.

Almost surely, 2^18361008 is an apocalyptic number.

18361008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18361008 is an abundant number, since it is smaller than the sum of its proper divisors (33024716).

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

18361008 is a wasteful number, since it uses less digits than its factorization.

18361008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127521 (or 127512 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 18361008 is about 4284.9746790384. The cubic root of 18361008 is about 263.8146081325.

Adding to 18361008 its reverse (80016381), we get a palindrome (98377389).

The spelling of 18361008 in words is "eighteen million, three hundred sixty-one thousand, eight".