18162996 has 12 divisors (see below), whose sum is σ = 42380352. Its totient is φ = 6054328.

The previous prime is 18162979. The next prime is 18163001. The reversal of 18162996 is 69926181.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 756780 + ... + 756803.

It is an arithmetic number, because the mean of its divisors is an integer number (3531696).

Almost surely, 2^18162996 is an apocalyptic number.

It is an amenable number.

18162996 is an abundant number, since it is smaller than the sum of its proper divisors (24217356).

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

18162996 is a wasteful number, since it uses less digits than its factorization.

18162996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513590 (or 1513588 counting only the distinct ones).

The product of its digits is 46656, while the sum is 42.

The square root of 18162996 is about 4261.8066591529. The cubic root of 18162996 is about 262.8628198319.

The spelling of 18162996 in words is "eighteen million, one hundred sixty-two thousand, nine hundred ninety-six".