23138268 has 48 divisors (see below), whose sum is σ = 55883520. Its totient is φ = 7446400.

The previous prime is 23138237. The next prime is 23138273. The reversal of 23138268 is 86283132.

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 15 ways as a sum of consecutive naturals, for example, 64273 + ... + 64631.

It is an arithmetic number, because the mean of its divisors is an integer number (1164240).

Almost surely, 2^23138268 is an apocalyptic number.

It is an amenable number.

23138268 is an abundant number, since it is smaller than the sum of its proper divisors (32745252).

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

23138268 is a wasteful number, since it uses less digits than its factorization.

23138268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538 (or 536 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 23138268 is about 4810.2253585461. The cubic root of 23138268 is about 284.9554377849.

The spelling of 23138268 in words is "twenty-three million, one hundred thirty-eight thousand, two hundred sixty-eight".