23143998 has 32 divisors (see below), whose sum is σ = 47324160. Its totient is φ = 7544160.

The previous prime is 23143973. The next prime is 23143999. The reversal of 23143998 is 89934132.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23143999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74263 + ... + 74573.

It is an arithmetic number, because the mean of its divisors is an integer number (1478880).

Almost surely, 2^23143998 is an apocalyptic number.

23143998 is an abundant number, since it is smaller than the sum of its proper divisors (24180162).

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

23143998 is a wasteful number, since it uses less digits than its factorization.

23143998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552.

The product of its digits is 46656, while the sum is 39.

The square root of 23143998 is about 4810.8209278667. The cubic root of 23143998 is about 284.9789581264.

The spelling of 23143998 in words is "twenty-three million, one hundred forty-three thousand, nine hundred ninety-eight".