23128238 has 32 divisors (see below), whose sum is σ = 41074176. Its totient is φ = 9561888.

The previous prime is 23128229. The next prime is 23128241. The reversal of 23128238 is 83282132.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23128238.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61820 + ... + 62192.

It is an arithmetic number, because the mean of its divisors is an integer number (1283568).

Almost surely, 2^23128238 is an apocalyptic number.

23128238 is a deficient number, since it is larger than the sum of its proper divisors (17945938).

23128238 is a wasteful number, since it uses less digits than its factorization.

23128238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528.

The product of its digits is 4608, while the sum is 29.

The square root of 23128238 is about 4809.1826748420. The cubic root of 23128238 is about 284.9142575762.

The spelling of 23128238 in words is "twenty-three million, one hundred twenty-eight thousand, two hundred thirty-eight".