23776720 has 80 divisors (see below), whose sum is σ = 61871040. Its totient is φ = 8422400.

The previous prime is 23776717. The next prime is 23776729. The reversal of 23776720 is 2767732.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23776729) 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 15 ways as a sum of consecutive naturals, for example, 35751 + ... + 36409.

It is an arithmetic number, because the mean of its divisors is an integer number (773388).

Almost surely, 2^23776720 is an apocalyptic number.

23776720 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 23776720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30935520).

23776720 is an abundant number, since it is smaller than the sum of its proper divisors (38094320).

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

23776720 is a wasteful number, since it uses less digits than its factorization.

23776720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 34.

The square root of 23776720 is about 4876.1378159359. The cubic root of 23776720 is about 287.5526104099.

The spelling of 23776720 in words is "twenty-three million, seven hundred seventy-six thousand, seven hundred twenty".