22481524 has 12 divisors (see below), whose sum is σ = 42369124. Its totient is φ = 10376064.

The previous prime is 22481521. The next prime is 22481527. The reversal of 22481524 is 42518422.

It is an interprime number because it is at equal distance from previous prime (22481521) and next prime (22481527).

It can be written as a sum of positive squares in 2 ways, for example, as 3732624 + 18748900 = 1932^2 + 4330^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 22481492 and 22481501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22481521) 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, 216117 + ... + 216220.

Almost surely, 2^22481524 is an apocalyptic number.

It is an amenable number.

22481524 is a deficient number, since it is larger than the sum of its proper divisors (19887600).

22481524 is a wasteful number, since it uses less digits than its factorization.

22481524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432354 (or 432352 counting only the distinct ones).

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

The square root of 22481524 is about 4741.4685488781. The cubic root of 22481524 is about 282.2335138071.

Adding to 22481524 its reverse (42518422), we get a palindrome (64999946).

It can be divided in two parts, 22481 and 524, that added together give a triangular number (23005 = T₂₁₄).

The spelling of 22481524 in words is "twenty-two million, four hundred eighty-one thousand, five hundred twenty-four".