18730982 has 8 divisors (see below), whose sum is σ = 28269336. Its totient is φ = 9307872.

The previous prime is 18730981. The next prime is 18731021. The reversal of 18730982 is 28903781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18730981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28403 + ... + 29054.

It is an arithmetic number, because the mean of its divisors is an integer number (3533667).

Almost surely, 2^18730982 is an apocalyptic number.

18730982 is a deficient number, since it is larger than the sum of its proper divisors (9538354).

18730982 is a wasteful number, since it uses less digits than its factorization.

18730982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57622.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 18730982 is about 4327.9304523063. The cubic root of 18730982 is about 265.5747912852.

The spelling of 18730982 in words is "eighteen million, seven hundred thirty thousand, nine hundred eighty-two".