22716645 has 48 divisors (see below), whose sum is σ = 43688448. Its totient is φ = 10039680.

The previous prime is 22716643. The next prime is 22716667. The reversal of 22716645 is 54661722.

It is not a de Polignac number, because 22716645 - 2¹ = 22716643 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22716643) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22287 + ... + 23283.

It is an arithmetic number, because the mean of its divisors is an integer number (910176).

Almost surely, 2^22716645 is an apocalyptic number.

It is an amenable number.

22716645 is a deficient number, since it is larger than the sum of its proper divisors (20971803).

22716645 is a wasteful number, since it uses less digits than its factorization.

22716645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050 (or 1043 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 22716645 is about 4766.1981704499. The cubic root of 22716645 is about 283.2140081926.

The spelling of 22716645 in words is "twenty-two million, seven hundred sixteen thousand, six hundred forty-five".