23940345 has 32 divisors (see below), whose sum is σ = 45005184. Its totient is φ = 10713600.

The previous prime is 23940337. The next prime is 23940349. The reversal of 23940345 is 54304932.

It is not a de Polignac number, because 23940345 - 2³ = 23940337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23940349) 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, 3436 + ... + 7725.

It is an arithmetic number, because the mean of its divisors is an integer number (1406412).

Almost surely, 2^23940345 is an apocalyptic number.

It is an amenable number.

23940345 is a deficient number, since it is larger than the sum of its proper divisors (21064839).

23940345 is a wasteful number, since it uses less digits than its factorization.

23940345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11193.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 23940345 is about 4892.8871844750. The cubic root of 23940345 is about 288.2107229996.

The spelling of 23940345 in words is "twenty-three million, nine hundred forty thousand, three hundred forty-five".