18170982 has 12 divisors (see below), whose sum is σ = 39370500. Its totient is φ = 6056988.

The previous prime is 18170953. The next prime is 18170987. The reversal of 18170982 is 28907181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18170987) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 504732 + ... + 504767.

It is an arithmetic number, because the mean of its divisors is an integer number (3280875).

Almost surely, 2^18170982 is an apocalyptic number.

18170982 is an abundant number, since it is smaller than the sum of its proper divisors (21199518).

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

18170982 is a wasteful number, since it uses less digits than its factorization.

18170982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009507 (or 1009504 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 18170982 is about 4262.7434827820. The cubic root of 18170982 is about 262.9013398149.

The spelling of 18170982 in words is "eighteen million, one hundred seventy thousand, nine hundred eighty-two".