22508452 has 12 divisors (see below), whose sum is σ = 39430300. Its totient is φ = 11242656.

The previous prime is 22508429. The next prime is 22508471. The reversal of 22508452 is 25480522.

It can be written as a sum of positive squares in 2 ways, for example, as 16777216 + 5731236 = 4096^2 + 2394^2 .

It is a super-2 number, since 2×22508452² = 1013260822872608, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22508452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2674 + ... + 7222.

Almost surely, 2^22508452 is an apocalyptic number.

It is an amenable number.

22508452 is a deficient number, since it is larger than the sum of its proper divisors (16921848).

22508452 is a wasteful number, since it uses less digits than its factorization.

22508452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5790 (or 5788 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 22508452 is about 4744.3073256272. The cubic root of 22508452 is about 282.3461537346.

Adding to 22508452 its reverse (25480522), we get a palindrome (47988974).

The spelling of 22508452 in words is "twenty-two million, five hundred eight thousand, four hundred fifty-two".