22442013 has 24 divisors (see below), whose sum is σ = 35514336. Its totient is φ = 13543200.

The previous prime is 22441999. The next prime is 22442029. The reversal of 22442013 is 31024422.

It is not a de Polignac number, because 22442013 - 2⁵ = 22441981 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22442093) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39018 + ... + 39588.

It is an arithmetic number, because the mean of its divisors is an integer number (1479764).

Almost surely, 2^22442013 is an apocalyptic number.

It is an amenable number.

22442013 is a deficient number, since it is larger than the sum of its proper divisors (13072323).

22442013 is a wasteful number, since it uses less digits than its factorization.

22442013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985 (or 982 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 22442013 is about 4737.3001804825. The cubic root of 22442013 is about 282.0680762160.

Adding to 22442013 its reverse (31024422), we get a palindrome (53466435).

The spelling of 22442013 in words is "twenty-two million, four hundred forty-two thousand, thirteen".