18750982 has 4 divisors (see below), whose sum is σ = 28126476. Its totient is φ = 9375490.

The previous prime is 18750931. The next prime is 18750989. The reversal of 18750982 is 28905781.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18750989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4687744 + ... + 4687747.

It is an arithmetic number, because the mean of its divisors is an integer number (7031619).

Almost surely, 2^18750982 is an apocalyptic number.

18750982 is a deficient number, since it is larger than the sum of its proper divisors (9375494).

18750982 is an equidigital number, since it uses as much as digits as its factorization.

18750982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9375493.

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 18750982 is about 4330.2404090304. The cubic root of 18750982 is about 265.6692801290.

The spelling of 18750982 in words is "eighteen million, seven hundred fifty thousand, nine hundred eighty-two".