22442636 has 36 divisors (see below), whose sum is σ = 42477120. Its totient is φ = 10352160.

The previous prime is 22442633. The next prime is 22442639. The reversal of 22442636 is 63624422.

It is an interprime number because it is at equal distance from previous prime (22442633) and next prime (22442639).

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 22442599 and 22442608.

It is not an unprimeable number, because it can be changed into a prime (22442633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 284045 + ... + 284123.

It is an arithmetic number, because the mean of its divisors is an integer number (1179920).

Almost surely, 2^22442636 is an apocalyptic number.

It is an amenable number.

22442636 is a deficient number, since it is larger than the sum of its proper divisors (20034484).

22442636 is a wasteful number, since it uses less digits than its factorization.

22442636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 141 counting only the distinct ones).

The product of its digits is 13824, while the sum is 29.

The square root of 22442636 is about 4737.3659347785. The cubic root of 22442636 is about 282.0706863025.

The spelling of 22442636 in words is "twenty-two million, four hundred forty-two thousand, six hundred thirty-six".