22404524 has 12 divisors (see below), whose sum is σ = 40042464. Its totient is φ = 10963824.

The previous prime is 22404523. The next prime is 22404539. The reversal of 22404524 is 42540422.

It is a self number, because there is not a number n which added to its sum of digits gives 22404524.

It is not an unprimeable number, because it can be changed into a prime (22404523) 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, 59399 + ... + 59774.

It is an arithmetic number, because the mean of its divisors is an integer number (3336872).

Almost surely, 2^22404524 is an apocalyptic number.

It is an amenable number.

22404524 is a deficient number, since it is larger than the sum of its proper divisors (17637940).

22404524 is a wasteful number, since it uses less digits than its factorization.

22404524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119224 (or 119222 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 22404524 is about 4733.3417370817. The cubic root of 22404524 is about 281.9109253739.

Adding to 22404524 its reverse (42540422), we get a palindrome (64944946).

The spelling of 22404524 in words is "twenty-two million, four hundred four thousand, five hundred twenty-four".