23940939 has 24 divisors (see below), whose sum is σ = 35488656. Its totient is φ = 14344000.

The previous prime is 23940937. The next prime is 23940949. The reversal of 23940939 is 93904932.

It is not a de Polignac number, because 23940939 - 2¹ = 23940937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23940897 and 23940906.

It is not an unprimeable number, because it can be changed into a prime (23940937) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36337 + ... + 36989.

It is an arithmetic number, because the mean of its divisors is an integer number (1478694).

Almost surely, 2^23940939 is an apocalyptic number.

23940939 is a deficient number, since it is larger than the sum of its proper divisors (11547717).

23940939 is a wasteful number, since it uses less digits than its factorization.

23940939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779 (or 768 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 23940939 is about 4892.9478844558. The cubic root of 23940939 is about 288.2131066432.

The spelling of 23940939 in words is "twenty-three million, nine hundred forty thousand, nine hundred thirty-nine".