23073945 has 32 divisors (see below), whose sum is σ = 39370752. Its totient is φ = 11512512.

The previous prime is 23073943. The next prime is 23073971. The reversal of 23073945 is 54937032.

It is a happy number.

It is not a de Polignac number, because 23073945 - 2¹ = 23073943 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23073943) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15504 + ... + 16926.

It is an arithmetic number, because the mean of its divisors is an integer number (1230336).

Almost surely, 2^23073945 is an apocalyptic number.

It is an amenable number.

23073945 is a deficient number, since it is larger than the sum of its proper divisors (16296807).

23073945 is a wasteful number, since it uses less digits than its factorization.

23073945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 23073945 is about 4803.5346360779. The cubic root of 23073945 is about 284.6911397025.

The spelling of 23073945 in words is "twenty-three million, seventy-three thousand, nine hundred forty-five".