23163318 has 48 divisors (see below), whose sum is σ = 53492400. Its totient is φ = 7223040.

The previous prime is 23163311. The next prime is 23163331. The reversal of 23163318 is 81336132.

It is a happy number.

23163318 is a `hidden beast` number, since 23 + 1 + 633 + 1 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 23163291 and 23163300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23163311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30058 + ... + 30818.

It is an arithmetic number, because the mean of its divisors is an integer number (1114425).

Almost surely, 2^23163318 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23163318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26746200).

23163318 is an abundant number, since it is smaller than the sum of its proper divisors (30329082).

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

23163318 is a wasteful number, since it uses less digits than its factorization.

23163318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877 (or 874 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 23163318 is about 4812.8284822960. The cubic root of 23163318 is about 285.0582337144.

The spelling of 23163318 in words is "twenty-three million, one hundred sixty-three thousand, three hundred eighteen".