23022945 has 24 divisors (see below), whose sum is σ = 43535232. Its totient is φ = 11162400.

The previous prime is 23022929. The next prime is 23022953. The reversal of 23022945 is 54922032.

It is not a de Polignac number, because 23022945 - 2⁴ = 23022929 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22761 + ... + 23750.

It is an arithmetic number, because the mean of its divisors is an integer number (1813968).

Almost surely, 2^23022945 is an apocalyptic number.

It is an amenable number.

23022945 is a deficient number, since it is larger than the sum of its proper divisors (20512287).

23022945 is a wasteful number, since it uses less digits than its factorization.

23022945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46533 (or 46530 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 23022945 is about 4798.2231086101. The cubic root of 23022945 is about 284.4812354359.

Adding to 23022945 its reverse (54922032), we get a palindrome (77944977).

The spelling of 23022945 in words is "twenty-three million, twenty-two thousand, nine hundred forty-five".