22452644 has 6 divisors (see below), whose sum is σ = 39292134. Its totient is φ = 11226320.

The previous prime is 22452637. The next prime is 22452659. The reversal of 22452644 is 44625422.

It can be written as a sum of positive squares in only one way, i.e., 15366400 + 7086244 = 3920^2 + 2662^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2806577 + ... + 2806584.

It is an arithmetic number, because the mean of its divisors is an integer number (6548689).

Almost surely, 2^22452644 is an apocalyptic number.

It is an amenable number.

22452644 is a deficient number, since it is larger than the sum of its proper divisors (16839490).

22452644 is a wasteful number, since it uses less digits than its factorization.

22452644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5613165 (or 5613163 counting only the distinct ones).

The product of its digits is 15360, while the sum is 29.

The square root of 22452644 is about 4738.4221002355. The cubic root of 22452644 is about 282.1126086494.

The spelling of 22452644 in words is "twenty-two million, four hundred fifty-two thousand, six hundred forty-four".