22918016 has 64 divisors (see below), whose sum is σ = 51150960. Its totient is φ = 10137600.

The previous prime is 22918003. The next prime is 22918031. The reversal of 22918016 is 61081922.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 22918016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57530 + ... + 57926.

Almost surely, 2^22918016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22918016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25575480).

22918016 is an abundant number, since it is smaller than the sum of its proper divisors (28232944).

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

22918016 is a wasteful number, since it uses less digits than its factorization.

22918016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 22918016 is about 4787.2764699775. The cubic root of 22918016 is about 284.0483948475.

Adding to 22918016 its reverse (61081922), we get a palindrome (83999938).

The spelling of 22918016 in words is "twenty-two million, nine hundred eighteen thousand, sixteen".