22481452 has 12 divisors (see below), whose sum is σ = 44962960. Its totient is φ = 9634896.

The previous prime is 22481383. The next prime is 22481453. The reversal of 22481452 is 25418422.

22481452 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 802909 = 22481452 / (2 + 2 + 4 + 8 + 1 + 4 + 5 + 2).

It is a self number, because there is not a number n which added to its sum of digits gives 22481452.

It is not an unprimeable number, because it can be changed into a prime (22481453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401427 + ... + 401482.

Almost surely, 2^22481452 is an apocalyptic number.

It is an amenable number.

22481452 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22481452 is a wasteful number, since it uses less digits than its factorization.

22481452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802920 (or 802918 counting only the distinct ones).

The product of its digits is 5120, while the sum is 28.

The square root of 22481452 is about 4741.4609562876. The cubic root of 22481452 is about 282.2332125103.

Adding to 22481452 its reverse (25418422), we get a palindrome (47899874).

The spelling of 22481452 in words is "twenty-two million, four hundred eighty-one thousand, four hundred fifty-two".