22497244 has 24 divisors (see below), whose sum is σ = 49085568. Its totient is φ = 8765040.

The previous prime is 22497229. The next prime is 22497247. The reversal of 22497244 is 44279422.

It is a happy number.

It is a super-2 number, since 2×22497244² = 1012251975191072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22497247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36214 + ... + 36829.

It is an arithmetic number, because the mean of its divisors is an integer number (2045232).

Almost surely, 2^22497244 is an apocalyptic number.

It is an amenable number.

22497244 is an abundant number, since it is smaller than the sum of its proper divisors (26588324).

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

22497244 is a wasteful number, since it uses less digits than its factorization.

22497244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73065 (or 73063 counting only the distinct ones).

The product of its digits is 32256, while the sum is 34.

The square root of 22497244 is about 4743.1259734483. The cubic root of 22497244 is about 282.2992815479.

The spelling of 22497244 in words is "twenty-two million, four hundred ninety-seven thousand, two hundred forty-four".