23922945 has 20 divisors (see below), whose sum is σ = 42884820. Its totient is φ = 12758688.

The previous prime is 23922931. The next prime is 23922947. The reversal of 23922945 is 54922932.

It can be written as a sum of positive squares in 2 ways, for example, as 13483584 + 10439361 = 3672^2 + 3231^2 .

It is not a de Polignac number, because 23922945 - 2¹³ = 23914753 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23922947) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29130 + ... + 29939.

It is an arithmetic number, because the mean of its divisors is an integer number (2144241).

Almost surely, 2^23922945 is an apocalyptic number.

It is an amenable number.

23922945 is a deficient number, since it is larger than the sum of its proper divisors (18961875).

23922945 is an equidigital number, since it uses as much as digits as its factorization.

23922945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59086 (or 59077 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 23922945 is about 4891.1087700030. The cubic root of 23922945 is about 288.1408815942.

The spelling of 23922945 in words is "twenty-three million, nine hundred twenty-two thousand, nine hundred forty-five".