23139768 has 32 divisors (see below), whose sum is σ = 58041360. Its totient is φ = 7687680.

The previous prime is 23139761. The next prime is 23139769. The reversal of 23139768 is 86793132.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23139761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6658 + ... + 9518.

Almost surely, 2^23139768 is an apocalyptic number.

It is an amenable number.

23139768 is an abundant number, since it is smaller than the sum of its proper divisors (34901592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23139768 is a wasteful number, since it uses less digits than its factorization.

23139768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207 (or 3203 counting only the distinct ones).

The product of its digits is 54432, while the sum is 39.

The square root of 23139768 is about 4810.3812738701. The cubic root of 23139768 is about 284.9615953175.

The spelling of 23139768 in words is "twenty-three million, one hundred thirty-nine thousand, seven hundred sixty-eight".