18750812 has 12 divisors (see below), whose sum is σ = 32921616. Its totient is φ = 9344640.

The previous prime is 18750793. The next prime is 18750827. The reversal of 18750812 is 21805781.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6293 + ... + 8780.

It is an arithmetic number, because the mean of its divisors is an integer number (2743468).

Almost surely, 2^18750812 is an apocalyptic number.

It is an amenable number.

18750812 is a deficient number, since it is larger than the sum of its proper divisors (14170804).

18750812 is a wasteful number, since it uses less digits than its factorization.

18750812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15388 (or 15386 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 18750812 is about 4330.2207795908. The cubic root of 18750812 is about 265.6684772570.

The spelling of 18750812 in words is "eighteen million, seven hundred fifty thousand, eight hundred twelve".