18508950 has 36 divisors (see below), whose sum is σ = 49728588. Its totient is φ = 4935600.

The previous prime is 18508943. The next prime is 18508969. The reversal of 18508950 is 5980581.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 20116 + ... + 21015.

Almost surely, 2^18508950 is an apocalyptic number.

18508950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18508950 is an abundant number, since it is smaller than the sum of its proper divisors (31219638).

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

18508950 is a wasteful number, since it uses less digits than its factorization.

18508950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41149 (or 41141 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 18508950 is about 4302.2029240844. The cubic root of 18508950 is about 264.5212669152.

The spelling of 18508950 in words is "eighteen million, five hundred eight thousand, nine hundred fifty".