22359724 has 6 divisors (see below), whose sum is σ = 39129524. Its totient is φ = 11179860.

The previous prime is 22359721. The next prime is 22359763. The reversal of 22359724 is 42795322.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22359724.

It is not an unprimeable number, because it can be changed into a prime (22359721) 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 as a sum of consecutive naturals, namely, 2794962 + ... + 2794969.

Almost surely, 2^22359724 is an apocalyptic number.

It is an amenable number.

22359724 is a deficient number, since it is larger than the sum of its proper divisors (16769800).

22359724 is a wasteful number, since it uses less digits than its factorization.

22359724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5589935 (or 5589933 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 22359724 is about 4728.6069830342. The cubic root of 22359724 is about 281.7228973241.

The spelling of 22359724 in words is "twenty-two million, three hundred fifty-nine thousand, seven hundred twenty-four".