22724324 has 12 divisors (see below), whose sum is σ = 45448704. Its totient is φ = 9738984.

The previous prime is 22724311. The next prime is 22724329. The reversal of 22724324 is 42342722.

22724324 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 22724293 and 22724302.

It is not an unprimeable number, because it can be changed into a prime (22724329) 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, 405764 + ... + 405819.

It is an arithmetic number, because the mean of its divisors is an integer number (3787392).

Almost surely, 2^22724324 is an apocalyptic number.

It is an amenable number.

22724324 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.

22724324 is a wasteful number, since it uses less digits than its factorization.

22724324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811594 (or 811592 counting only the distinct ones).

The product of its digits is 5376, while the sum is 26.

The square root of 22724324 is about 4767.0036710705. The cubic root of 22724324 is about 283.2459165923.

The spelling of 22724324 in words is "twenty-two million, seven hundred twenty-four thousand, three hundred twenty-four".