23323920 has 80 divisors (see below), whose sum is σ = 72882240. Its totient is φ = 6170112.

The previous prime is 23323919. The next prime is 23323933. The reversal of 23323920 is 2932332.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

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 15 ways as a sum of consecutive naturals, for example, 37371 + ... + 37989.

It is an arithmetic number, because the mean of its divisors is an integer number (911028).

Almost surely, 2^23323920 is an apocalyptic number.

23323920 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 23323920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36441120).

23323920 is an abundant number, since it is smaller than the sum of its proper divisors (49558320).

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

23323920 is a wasteful number, since it uses less digits than its factorization.

23323920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792 (or 786 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 23323920 is about 4829.4844445344. The cubic root of 23323920 is about 285.7155304708.

The spelling of 23323920 in words is "twenty-three million, three hundred twenty-three thousand, nine hundred twenty".