23802320 has 40 divisors (see below), whose sum is σ = 55851336. Its totient is φ = 9433088.

The previous prime is 23802319. The next prime is 23802323. The reversal of 23802320 is 2320832.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 839056 + 22963264 = 916^2 + 4792^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23802292 and 23802301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23802323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7724 + ... + 10356.

Almost surely, 2^23802320 is an apocalyptic number.

23802320 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 23802320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27925668).

23802320 is an abundant number, since it is smaller than the sum of its proper divisors (32049016).

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

23802320 is a wasteful number, since it uses less digits than its factorization.

23802320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2759 (or 2753 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 23802320 is about 4878.7621380838. The cubic root of 23802320 is about 287.6557744356.

The spelling of 23802320 in words is "twenty-three million, eight hundred two thousand, three hundred twenty".