22945805 has 4 divisors (see below), whose sum is σ = 27534972. Its totient is φ = 18356640.

The previous prime is 22945799. The next prime is 22945807. The reversal of 22945805 is 50854922.

It is a happy number.

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 2569609 + 20376196 = 1603^2 + 4514^2 .

It is a de Polignac number, because none of the positive numbers 2^k-22945805 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22945807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2294576 + ... + 2294585.

It is an arithmetic number, because the mean of its divisors is an integer number (6883743).

Almost surely, 2^22945805 is an apocalyptic number.

It is an amenable number.

22945805 is a deficient number, since it is larger than the sum of its proper divisors (4589167).

22945805 is an equidigital number, since it uses as much as digits as its factorization.

22945805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4589166.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 22945805 is about 4790.1779716416. The cubic root of 22945805 is about 284.1631551105.

The spelling of 22945805 in words is "twenty-two million, nine hundred forty-five thousand, eight hundred five".