22404613 has 24 divisors (see below), whose sum is σ = 28711584. Its totient is φ = 17287200.

The previous prime is 22404541. The next prime is 22404619. The reversal of 22404613 is 31640422.

It is a happy number.

It is not a de Polignac number, because 22404613 - 2²¹ = 20307461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22404619) 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 23 ways as a sum of consecutive naturals, for example, 106078 + ... + 106288.

It is an arithmetic number, because the mean of its divisors is an integer number (1196316).

Almost surely, 2^22404613 is an apocalyptic number.

It is an amenable number.

22404613 is a deficient number, since it is larger than the sum of its proper divisors (6306971).

22404613 is a wasteful number, since it uses less digits than its factorization.

22404613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 22404613 is about 4733.3511384642. The cubic root of 22404613 is about 281.9112986622.

The spelling of 22404613 in words is "twenty-two million, four hundred four thousand, six hundred thirteen".