23143616 has 28 divisors (see below), whose sum is σ = 46798992. Its totient is φ = 11351808.

The previous prime is 23143607. The next prime is 23143667. The reversal of 23143616 is 61634132.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20 + ... + 6803.

Almost surely, 2^23143616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23143616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23399496).

23143616 is an abundant number, since it is smaller than the sum of its proper divisors (23655376).

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

23143616 is an equidigital number, since it uses as much as digits as its factorization.

23143616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6888 (or 6878 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

The square root of 23143616 is about 4810.7812255392. The cubic root of 23143616 is about 284.9773902244.

Adding to 23143616 its reverse (61634132), we get a palindrome (84777748).

The spelling of 23143616 in words is "twenty-three million, one hundred forty-three thousand, six hundred sixteen".