23043918 has 16 divisors (see below), whose sum is σ = 46161360. Its totient is φ = 7669056.

The previous prime is 23043887. The next prime is 23043919. The reversal of 23043918 is 81934032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23043919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1546 + ... + 6962.

It is an arithmetic number, because the mean of its divisors is an integer number (2885085).

Almost surely, 2^23043918 is an apocalyptic number.

23043918 is an abundant number, since it is smaller than the sum of its proper divisors (23117442).

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

23043918 is a wasteful number, since it uses less digits than its factorization.

23043918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6131.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 23043918 is about 4800.4081076508. The cubic root of 23043918 is about 284.5675929681.

The spelling of 23043918 in words is "twenty-three million, forty-three thousand, nine hundred eighteen".