22993216 has 28 divisors (see below), whose sum is σ = 45827188. Its totient is φ = 11446272.

The previous prime is 22993213. The next prime is 22993237. The reversal of 22993216 is 61239922.

It can be written as a sum of positive squares in 2 ways, for example, as 15681600 + 7311616 = 3960^2 + 2704^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22993213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17080 + ... + 18376.

Almost surely, 2^22993216 is an apocalyptic number.

It is an amenable number.

22993216 is a deficient number, since it is larger than the sum of its proper divisors (22833972).

22993216 is a wasteful number, since it uses less digits than its factorization.

22993216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586 (or 1576 counting only the distinct ones).

The product of its digits is 11664, while the sum is 34.

The square root of 22993216 is about 4795.1241902583. The cubic root of 22993216 is about 284.3587346652.

The spelling of 22993216 in words is "twenty-two million, nine hundred ninety-three thousand, two hundred sixteen".