18316850 has 24 divisors (see below), whose sum is σ = 34993668. Its totient is φ = 7128000.

The previous prime is 18316849. The next prime is 18316867. The reversal of 18316850 is 5861381.

It can be written as a sum of positive squares in 6 ways, for example, as 15437041 + 2879809 = 3929^2 + 1697^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3101 + ... + 6800.

Almost surely, 2^18316850 is an apocalyptic number.

18316850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18316850 is a deficient number, since it is larger than the sum of its proper divisors (16676818).

18316850 is a wasteful number, since it uses less digits than its factorization.

18316850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9950 (or 9945 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 18316850 is about 4279.8189214031. The cubic root of 18316850 is about 263.6029480582.

The spelling of 18316850 in words is "eighteen million, three hundred sixteen thousand, eight hundred fifty".