22504152 has 32 divisors (see below), whose sum is σ = 61375680. Its totient is φ = 6819360.

The previous prime is 22504129. The next prime is 22504159. The reversal of 22504152 is 25140522.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22504159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42358 + ... + 42885.

It is an arithmetic number, because the mean of its divisors is an integer number (1917990).

Almost surely, 2^22504152 is an apocalyptic number.

22504152 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22504152 is an abundant number, since it is smaller than the sum of its proper divisors (38871528).

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

22504152 is a wasteful number, since it uses less digits than its factorization.

22504152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85263 (or 85259 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 22504152 is about 4743.8541292919. The cubic root of 22504152 is about 282.3281728478.

Adding to 22504152 its reverse (25140522), we get a palindrome (47644674).

The spelling of 22504152 in words is "twenty-two million, five hundred four thousand, one hundred fifty-two".