23128508 has 24 divisors (see below), whose sum is σ = 43794240. Its totient is φ = 10624320.

The previous prime is 23128507. The next prime is 23128537. The reversal of 23128508 is 80582132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23128507) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11498 + ... + 13358.

It is an arithmetic number, because the mean of its divisors is an integer number (1824760).

Almost surely, 2^23128508 is an apocalyptic number.

It is an amenable number.

23128508 is a deficient number, since it is larger than the sum of its proper divisors (20665732).

23128508 is a wasteful number, since it uses less digits than its factorization.

23128508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2117 (or 2115 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 23128508 is about 4809.2107460580. The cubic root of 23128508 is about 284.9153662721.

The spelling of 23128508 in words is "twenty-three million, one hundred twenty-eight thousand, five hundred eight".