23118816 has 48 divisors (see below), whose sum is σ = 69358464. Its totient is φ = 6605184.

The previous prime is 23118761. The next prime is 23118869. The reversal of 23118816 is 61881132.

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16530 + ... + 17873.

It is an arithmetic number, because the mean of its divisors is an integer number (1444968).

Almost surely, 2^23118816 is an apocalyptic number.

It is an amenable number.

23118816 is an abundant number, since it is smaller than the sum of its proper divisors (46239648).

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

23118816 is a wasteful number, since it uses less digits than its factorization.

23118816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34423 (or 34415 counting only the distinct ones).

The product of its digits is 2304, while the sum is 30.

The square root of 23118816 is about 4808.2029907232. The cubic root of 23118816 is about 284.8755627889.

Adding to 23118816 its reverse (61881132), we get a palindrome (84999948).

The spelling of 23118816 in words is "twenty-three million, one hundred eighteen thousand, eight hundred sixteen".