22806645 has 8 divisors (see below), whose sum is σ = 36490656. Its totient is φ = 12163536.

The previous prime is 22806629. The next prime is 22806647. The reversal of 22806645 is 54660822.

22806645 is nontrivially palindromic in base 2.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22806645 - 2⁴ = 22806629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22806647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 760207 + ... + 760236.

It is an arithmetic number, because the mean of its divisors is an integer number (4561332).

Almost surely, 2^22806645 is an apocalyptic number.

It is an amenable number.

22806645 is a deficient number, since it is larger than the sum of its proper divisors (13684011).

22806645 is a wasteful number, since it uses less digits than its factorization.

22806645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520451.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 22806645 is about 4775.6303248891. The cubic root of 22806645 is about 283.5875327318.

The spelling of 22806645 in words is "twenty-two million, eight hundred six thousand, six hundred forty-five".