23160720 has 160 divisors (see below), whose sum is σ = 81137664. Its totient is φ = 5414400.

The previous prime is 23160719. The next prime is 23160733. The reversal of 23160720 is 2706132.

It is a happy number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 81699 + ... + 81981.

Almost surely, 2^23160720 is an apocalyptic number.

23160720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23160720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40568832).

23160720 is an abundant number, since it is smaller than the sum of its proper divisors (57976944).

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

23160720 is a wasteful number, since it uses less digits than its factorization.

23160720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 23160720 is about 4812.5585710721. The cubic root of 23160720 is about 285.0475759295.

Adding to 23160720 its reverse (2706132), we get a palindrome (25866852).

The spelling of 23160720 in words is "twenty-three million, one hundred sixty thousand, seven hundred twenty".