22246816 has 24 divisors (see below), whose sum is σ = 44033220. Its totient is φ = 11063808.

The previous prime is 22246801. The next prime is 22246817. The reversal of 22246816 is 61864222.

It can be written as a sum of positive squares in 2 ways, for example, as 22090000 + 156816 = 4700^2 + 396^2 .

It is not an unprimeable number, because it can be changed into a prime (22246817) 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, 4540 + ... + 8068.

Almost surely, 2^22246816 is an apocalyptic number.

It is an amenable number.

22246816 is a deficient number, since it is larger than the sum of its proper divisors (21786404).

22246816 is a wasteful number, since it uses less digits than its factorization.

22246816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3736 (or 3728 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 22246816 is about 4716.6530506282. The cubic root of 22246816 is about 281.2478995069.

The spelling of 22246816 in words is "twenty-two million, two hundred forty-six thousand, eight hundred sixteen".