23881916 has 12 divisors (see below), whose sum is σ = 42006888. Its totient is φ = 11879952.

The previous prime is 23881903. The next prime is 23881933. The reversal of 23881916 is 61918832.

It is a self number, because there is not a number n which added to its sum of digits gives 23881916.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14366 + ... + 15941.

It is an arithmetic number, because the mean of its divisors is an integer number (3500574).

Almost surely, 2^23881916 is an apocalyptic number.

It is an amenable number.

23881916 is a deficient number, since it is larger than the sum of its proper divisors (18124972).

23881916 is a wasteful number, since it uses less digits than its factorization.

23881916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30508 (or 30506 counting only the distinct ones).

The product of its digits is 20736, while the sum is 38.

The square root of 23881916 is about 4886.9127268655. The cubic root of 23881916 is about 287.9760621822.

The spelling of 23881916 in words is "twenty-three million, eight hundred eighty-one thousand, nine hundred sixteen".