18974850 has 24 divisors (see below), whose sum is σ = 47058000. Its totient is φ = 5059920.

The previous prime is 18974833. The next prime is 18974881. The reversal of 18974850 is 5847981.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63100 + ... + 63399.

It is an arithmetic number, because the mean of its divisors is an integer number (1960750).

Almost surely, 2^18974850 is an apocalyptic number.

18974850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18974850 is an abundant number, since it is smaller than the sum of its proper divisors (28083150).

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

18974850 is a wasteful number, since it uses less digits than its factorization.

18974850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126514 (or 126509 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 18974850 is about 4356.0130853798. The cubic root of 18974850 is about 266.7223755139.

The spelling of 18974850 in words is "eighteen million, nine hundred seventy-four thousand, eight hundred fifty".