23738990 has 48 divisors (see below), whose sum is σ = 49067424. Its totient is φ = 8247360.

The previous prime is 23738983. The next prime is 23739007. The reversal of 23738990 is 9983732.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27404 + ... + 28256.

It is an arithmetic number, because the mean of its divisors is an integer number (1022238).

Almost surely, 2^23738990 is an apocalyptic number.

23738990 is an abundant number, since it is smaller than the sum of its proper divisors (25328434).

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

23738990 is a wasteful number, since it uses less digits than its factorization.

23738990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905 (or 894 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 23738990 is about 4872.2674392935. The cubic root of 23738990 is about 287.4004292875.

The spelling of 23738990 in words is "twenty-three million, seven hundred thirty-eight thousand, nine hundred ninety".