18098800 has 30 divisors (see below), whose sum is σ = 43483328. Its totient is φ = 7239360.

The previous prime is 18098797. The next prime is 18098819. The reversal of 18098800 is 889081.

It is a super-2 number, since 2×18098800² = 655133122880000, which contains 22 as substring.

It is a congruent number.

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, 22224 + ... + 23023.

Almost surely, 2^18098800 is an apocalyptic number.

18098800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18098800 is an abundant number, since it is smaller than the sum of its proper divisors (25384528).

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

18098800 is a wasteful number, since it uses less digits than its factorization.

18098800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45265 (or 45254 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 18098800 is about 4254.2684447505. The cubic root of 18098800 is about 262.5527633922.

It can be divided in two parts, 1809 and 8800, that added together give a square (10609 = 103²).

The spelling of 18098800 in words is "eighteen million, ninety-eight thousand, eight hundred".