18899150 has 48 divisors (see below), whose sum is σ = 36961920. Its totient is φ = 7180800.

The previous prime is 18899149. The next prime is 18899173. The reversal of 18899150 is 5199881.

It is a junction number, because it is equal to n+sod(n) for n = 18899098 and 18899107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137882 + ... + 138018.

It is an arithmetic number, because the mean of its divisors is an integer number (770040).

Almost surely, 2^18899150 is an apocalyptic number.

18899150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18899150 is a deficient number, since it is larger than the sum of its proper divisors (18062770).

18899150 is a wasteful number, since it uses less digits than its factorization.

18899150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 41.

The square root of 18899150 is about 4347.3152634701. The cubic root of 18899150 is about 266.3672072439.

The spelling of 18899150 in words is "eighteen million, eight hundred ninety-nine thousand, one hundred fifty".