18800898 has 16 divisors (see below), whose sum is σ = 37674720. Its totient is φ = 6254816.

The previous prime is 18800897. The next prime is 18800917. The reversal of 18800898 is 89800881.

It is a happy number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (18800897) 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, 661 + ... + 6167.

It is an arithmetic number, because the mean of its divisors is an integer number (2354670).

Almost surely, 2^18800898 is an apocalyptic number.

18800898 is an abundant number, since it is smaller than the sum of its proper divisors (18873822).

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

18800898 is a wasteful number, since it uses less digits than its factorization.

18800898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6081.

The product of its (nonzero) digits is 36864, while the sum is 42.

The square root of 18800898 is about 4336.0002306273. Note that the first 3 decimals coincide. The cubic root of 18800898 is about 265.9048126448.

The spelling of 18800898 in words is "eighteen million, eight hundred thousand, eight hundred ninety-eight".