22906845 has 24 divisors (see below), whose sum is σ = 42760536. Its totient is φ = 11276928.

The previous prime is 22906843. The next prime is 22906853. The reversal of 22906845 is 54860922.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2277081 + 20629764 = 1509^2 + 4542^2 .

It is not a de Polignac number, because 22906845 - 2¹ = 22906843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22906843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18994 + ... + 20163.

It is an arithmetic number, because the mean of its divisors is an integer number (1781689).

Almost surely, 2^22906845 is an apocalyptic number.

It is an amenable number.

22906845 is a deficient number, since it is larger than the sum of its proper divisors (19853691).

22906845 is a wasteful number, since it uses less digits than its factorization.

22906845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39181 (or 39178 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 22906845 is about 4786.1095892175. The cubic root of 22906845 is about 284.0022358152.

The spelling of 22906845 in words is "twenty-two million, nine hundred six thousand, eight hundred forty-five".