18898896 has 20 divisors (see below), whose sum is σ = 48822272. Its totient is φ = 6299616.

The previous prime is 18898861. The next prime is 18898921. The reversal of 18898896 is 69889881.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196816 + ... + 196911.

Almost surely, 2^18898896 is an apocalyptic number.

18898896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18898896 is an abundant number, since it is smaller than the sum of its proper divisors (29923376).

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

18898896 is a wasteful number, since it uses less digits than its factorization.

18898896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393738 (or 393732 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 57.

The square root of 18898896 is about 4347.2860499397. The cubic root of 18898896 is about 266.3660139349.

The spelling of 18898896 in words is "eighteen million, eight hundred ninety-eight thousand, eight hundred ninety-six".