22359944 has 8 divisors (see below), whose sum is σ = 41924910. Its totient is φ = 11179968.

The previous prime is 22359943. The next prime is 22359989. The reversal of 22359944 is 44995322.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12687844 + 9672100 = 3562^2 + 3110^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 22359898 and 22359907.

It is not an unprimeable number, because it can be changed into a prime (22359943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1397489 + ... + 1397504.

Almost surely, 2^22359944 is an apocalyptic number.

It is an amenable number.

22359944 is a deficient number, since it is larger than the sum of its proper divisors (19564966).

22359944 is a wasteful number, since it uses less digits than its factorization.

22359944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2794999 (or 2794995 counting only the distinct ones).

The product of its digits is 77760, while the sum is 38.

The square root of 22359944 is about 4728.6302456420. The cubic root of 22359944 is about 281.7238212895.

The spelling of 22359944 in words is "twenty-two million, three hundred fifty-nine thousand, nine hundred forty-four".