23863920 has 80 divisors (see below), whose sum is σ = 78343200. Its totient is φ = 5988352.

The previous prime is 23863909. The next prime is 23863933. The reversal of 23863920 is 2936832.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1156 + ... + 7004.

It is an arithmetic number, because the mean of its divisors is an integer number (979290).

Almost surely, 2^23863920 is an apocalyptic number.

23863920 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 23863920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39171600).

23863920 is an abundant number, since it is smaller than the sum of its proper divisors (54479280).

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

23863920 is a wasteful number, since it uses less digits than its factorization.

23863920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882 (or 5876 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 23863920 is about 4885.0711356131. The cubic root of 23863920 is about 287.9037100940.

The spelling of 23863920 in words is "twenty-three million, eight hundred sixty-three thousand, nine hundred twenty".