18022896 has 60 divisors (see below), whose sum is σ = 50739312. Its totient is φ = 5971968.

The previous prime is 18022889. The next prime is 18022909. The reversal of 18022896 is 69822081.

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 18022896.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36765 + ... + 37251.

Almost surely, 2^18022896 is an apocalyptic number.

18022896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18022896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25369656).

18022896 is an abundant number, since it is smaller than the sum of its proper divisors (32716416).

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

18022896 is a wasteful number, since it uses less digits than its factorization.

18022896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758 (or 749 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 18022896 is about 4245.3381490760. The cubic root of 18022896 is about 262.1852117746.

The spelling of 18022896 in words is "eighteen million, twenty-two thousand, eight hundred ninety-six".