22389613 has 4 divisors (see below), whose sum is σ = 22532380. Its totient is φ = 22246848.

The previous prime is 22389607. The next prime is 22389617. The reversal of 22389613 is 31698322.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13704804 + 8684809 = 3702^2 + 2947^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22389613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22389617) 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, 71148 + ... + 71461.

It is an arithmetic number, because the mean of its divisors is an integer number (5633095).

Almost surely, 2^22389613 is an apocalyptic number.

It is an amenable number.

22389613 is a deficient number, since it is larger than the sum of its proper divisors (142767).

22389613 is a wasteful number, since it uses less digits than its factorization.

22389613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142766.

The product of its digits is 15552, while the sum is 34.

The square root of 22389613 is about 4731.7663720856. The cubic root of 22389613 is about 281.8483709437.

The spelling of 22389613 in words is "twenty-two million, three hundred eighty-nine thousand, six hundred thirteen".