18122796 has 36 divisors (see below), whose sum is σ = 47392800. Its totient is φ = 5832288.

The previous prime is 18122791. The next prime is 18122809. The reversal of 18122796 is 69722181.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 18122796.

It is not an unprimeable number, because it can be changed into a prime (18122791) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7636 + ... + 9723.

Almost surely, 2^18122796 is an apocalyptic number.

It is an amenable number.

18122796 is an abundant number, since it is smaller than the sum of its proper divisors (29270004).

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

18122796 is a wasteful number, since it uses less digits than its factorization.

18122796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17398 (or 17393 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 18122796 is about 4257.0877369394. The cubic root of 18122796 is about 262.6687459216.

The spelling of 18122796 in words is "eighteen million, one hundred twenty-two thousand, seven hundred ninety-six".