23160220 has 12 divisors (see below), whose sum is σ = 48636504. Its totient is φ = 9264080.

The previous prime is 23160197. The next prime is 23160223. The reversal of 23160220 is 2206132.

It is a junction number, because it is equal to n+sod(n) for n = 23160194 and 23160203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23160223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578986 + ... + 579025.

It is an arithmetic number, because the mean of its divisors is an integer number (4053042).

Almost surely, 2^23160220 is an apocalyptic number.

23160220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23160220 is an abundant number, since it is smaller than the sum of its proper divisors (25476284).

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

23160220 is a wasteful number, since it uses less digits than its factorization.

23160220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158020 (or 1158018 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 23160220 is about 4812.5066233721. The cubic root of 23160220 is about 285.0455246862.

Adding to 23160220 its reverse (2206132), we get a palindrome (25366352).

The spelling of 23160220 in words is "twenty-three million, one hundred sixty thousand, two hundred twenty".