23978236 has 24 divisors (see below), whose sum is σ = 43997184. Its totient is φ = 11412720.

The previous prime is 23978233. The next prime is 23978239. The reversal of 23978236 is 63287932.

It is an interprime number because it is at equal distance from previous prime (23978233) and next prime (23978239).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23978233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23701 + ... + 24691.

It is an arithmetic number, because the mean of its divisors is an integer number (1833216).

Almost surely, 2^23978236 is an apocalyptic number.

It is an amenable number.

23978236 is a deficient number, since it is larger than the sum of its proper divisors (20018948).

23978236 is a wasteful number, since it uses less digits than its factorization.

23978236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281 (or 1279 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 23978236 is about 4896.7577028070. The cubic root of 23978236 is about 288.3626956930.

The spelling of 23978236 in words is "twenty-three million, nine hundred seventy-eight thousand, two hundred thirty-six".