23168220 has 48 divisors (see below), whose sum is σ = 68288640. Its totient is φ = 5852736.

The previous prime is 23168219. The next prime is 23168221. The reversal of 23168220 is 2286132.

It is an interprime number because it is at equal distance from previous prime (23168219) and next prime (23168221).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23168221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9022 + ... + 11301.

It is an arithmetic number, because the mean of its divisors is an integer number (1422680).

Almost surely, 2^23168220 is an apocalyptic number.

23168220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23168220 is an abundant number, since it is smaller than the sum of its proper divisors (45120420).

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

23168220 is a wasteful number, since it uses less digits than its factorization.

23168220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20354 (or 20352 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 23168220 is about 4813.3377192962. The cubic root of 23168220 is about 285.0783410367.

The spelling of 23168220 in words is "twenty-three million, one hundred sixty-eight thousand, two hundred twenty".