18182396 has 6 divisors (see below), whose sum is σ = 31819200. Its totient is φ = 9091196.

The previous prime is 18182389. The next prime is 18182413. The reversal of 18182396 is 69328181.

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 as a sum of consecutive naturals, namely, 2272796 + ... + 2272803.

It is an arithmetic number, because the mean of its divisors is an integer number (5303200).

Almost surely, 2^18182396 is an apocalyptic number.

It is an amenable number.

18182396 is a deficient number, since it is larger than the sum of its proper divisors (13636804).

18182396 is a wasteful number, since it uses less digits than its factorization.

18182396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4545603 (or 4545601 counting only the distinct ones).

The product of its digits is 20736, while the sum is 38.

The square root of 18182396 is about 4264.0820817616. The cubic root of 18182396 is about 262.9563749584.

The spelling of 18182396 in words is "eighteen million, one hundred eighty-two thousand, three hundred ninety-six".