23128842 has 16 divisors (see below), whose sum is σ = 50463072. Its totient is φ = 7008720.

The previous prime is 23128837. The next prime is 23128843. The reversal of 23128842 is 24882132.

It is not an unprimeable number, because it can be changed into a prime (23128843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175153 + ... + 175284.

It is an arithmetic number, because the mean of its divisors is an integer number (3153942).

Almost surely, 2^23128842 is an apocalyptic number.

23128842 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23128842 is an abundant number, since it is smaller than the sum of its proper divisors (27334230).

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

23128842 is a wasteful number, since it uses less digits than its factorization.

23128842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350453.

The product of its digits is 6144, while the sum is 30.

The square root of 23128842 is about 4809.2454709653. The cubic root of 23128842 is about 284.9167377581.

The spelling of 23128842 in words is "twenty-three million, one hundred twenty-eight thousand, eight hundred forty-two".