22492224 has 84 divisors (see below), whose sum is σ = 68291964. Its totient is φ = 7053312.

The previous prime is 22492199. The next prime is 22492237. The reversal of 22492224 is 42229422.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14197824 + 8294400 = 3768^2 + 2880^2 .

It is a nude number because it is divisible by every one of its digits.

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, 8644 + ... + 10940.

Almost surely, 2^22492224 is an apocalyptic number.

22492224 is a gapful number since it is divisible by the number (24) 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 22492224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34145982).

22492224 is an abundant number, since it is smaller than the sum of its proper divisors (45799740).

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

22492224 is a wasteful number, since it uses less digits than its factorization.

22492224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332 (or 2319 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 22492224 is about 4742.5967570520. The cubic root of 22492224 is about 282.2782827119.

The spelling of 22492224 in words is "twenty-two million, four hundred ninety-two thousand, two hundred twenty-four".