23143868 has 24 divisors (see below), whose sum is σ = 46784304. Its totient is φ = 9900800.

The previous prime is 23143867. The next prime is 23143873. The reversal of 23143868 is 86834132.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23143867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14723 + ... + 16218.

It is an arithmetic number, because the mean of its divisors is an integer number (1949346).

Almost surely, 2^23143868 is an apocalyptic number.

It is an amenable number.

23143868 is an abundant number, since it is smaller than the sum of its proper divisors (23640436).

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

23143868 is a wasteful number, since it uses less digits than its factorization.

23143868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30973 (or 30971 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 23143868 is about 4810.8074166402. The cubic root of 23143868 is about 284.9784245491.

The spelling of 23143868 in words is "twenty-three million, one hundred forty-three thousand, eight hundred sixty-eight".