22724152 has 32 divisors (see below), whose sum is σ = 48931200. Its totient is φ = 9784800.

The previous prime is 22724129. The next prime is 22724173. The reversal of 22724152 is 25142722.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5124 + ... + 8467.

It is an arithmetic number, because the mean of its divisors is an integer number (1529100).

Almost surely, 2^22724152 is an apocalyptic number.

22724152 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22724152 is an abundant number, since it is smaller than the sum of its proper divisors (26207048).

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

22724152 is a wasteful number, since it uses less digits than its factorization.

22724152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13627 (or 13623 counting only the distinct ones).

The product of its digits is 2240, while the sum is 25.

The square root of 22724152 is about 4766.9856303538. The cubic root of 22724152 is about 283.2452019627.

Adding to 22724152 its reverse (25142722), we get a palindrome (47866874).

The spelling of 22724152 in words is "twenty-two million, seven hundred twenty-four thousand, one hundred fifty-two".