22600645 has 4 divisors (see below), whose sum is σ = 27120780. Its totient is φ = 18080512.

The previous prime is 22600639. The next prime is 22600661. The reversal of 22600645 is 54600622.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4901796 + 17698849 = 2214^2 + 4207^2 .

It is a cyclic number.

It is not a de Polignac number, because 22600645 - 2³ = 22600637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2260060 + ... + 2260069.

It is an arithmetic number, because the mean of its divisors is an integer number (6780195).

Almost surely, 2^22600645 is an apocalyptic number.

It is an amenable number.

22600645 is a deficient number, since it is larger than the sum of its proper divisors (4520135).

22600645 is an equidigital number, since it uses as much as digits as its factorization.

22600645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4520134.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 22600645 is about 4754.0135675027. The cubic root of 22600645 is about 282.7311184601.

The spelling of 22600645 in words is "twenty-two million, six hundred thousand, six hundred forty-five".