22712445 has 24 divisors (see below), whose sum is σ = 44992896. Its totient is φ = 10382688.

The previous prime is 22712441. The next prime is 22712447. The reversal of 22712445 is 54421722.

It is not a de Polignac number, because 22712445 - 2² = 22712441 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 (22712441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35737 + ... + 36366.

It is an arithmetic number, because the mean of its divisors is an integer number (1874704).

Almost surely, 2^22712445 is an apocalyptic number.

It is an amenable number.

22712445 is a deficient number, since it is larger than the sum of its proper divisors (22280451).

22712445 is a wasteful number, since it uses less digits than its factorization.

22712445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72121 (or 72118 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 22712445 is about 4765.7575473370. The cubic root of 22712445 is about 283.1965529720.

The spelling of 22712445 in words is "twenty-two million, seven hundred twelve thousand, four hundred forty-five".