22645604 has 6 divisors (see below), whose sum is σ = 39629814. Its totient is φ = 11322800.

The previous prime is 22645589. The next prime is 22645627. The reversal of 22645604 is 40654622.

It can be written as a sum of positive squares in only one way, i.e., 15366400 + 7279204 = 3920^2 + 2698^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2830697 + ... + 2830704.

It is an arithmetic number, because the mean of its divisors is an integer number (6604969).

Almost surely, 2^22645604 is an apocalyptic number.

It is an amenable number.

22645604 is a deficient number, since it is larger than the sum of its proper divisors (16984210).

22645604 is a wasteful number, since it uses less digits than its factorization.

22645604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5661405 (or 5661403 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 22645604 is about 4758.7397491353. The cubic root of 22645604 is about 282.9184713561.

The spelling of 22645604 in words is "twenty-two million, six hundred forty-five thousand, six hundred four".