18396996 has 12 divisors (see below), whose sum is σ = 42926352. Its totient is φ = 6132328.

The previous prime is 18396979. The next prime is 18397003. The reversal of 18396996 is 69969381.

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

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 766530 + ... + 766553.

It is an arithmetic number, because the mean of its divisors is an integer number (3577196).

Almost surely, 2^18396996 is an apocalyptic number.

It is an amenable number.

18396996 is an abundant number, since it is smaller than the sum of its proper divisors (24529356).

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

18396996 is a wasteful number, since it uses less digits than its factorization.

18396996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533090 (or 1533088 counting only the distinct ones).

The product of its digits is 629856, while the sum is 51.

The square root of 18396996 is about 4289.1719480571. The cubic root of 18396996 is about 263.9868565541.

It can be divided in two parts, 183 and 96996, that added together give a palindrome (97179).

The spelling of 18396996 in words is "eighteen million, three hundred ninety-six thousand, nine hundred ninety-six".