23332720 has 40 divisors (see below), whose sum is σ = 55282176. Its totient is φ = 9155328.

The previous prime is 23332697. The next prime is 23332723. The reversal of 23332720 is 2723332.

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

It is a junction number, because it is equal to n+sod(n) for n = 23332691 and 23332700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23332723) 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, 1489 + ... + 6991.

Almost surely, 2^23332720 is an apocalyptic number.

23332720 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 23332720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27641088).

23332720 is an abundant number, since it is smaller than the sum of its proper divisors (31949456).

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

23332720 is a wasteful number, since it uses less digits than its factorization.

23332720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5569 (or 5563 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 22.

The square root of 23332720 is about 4830.3954289478. The cubic root of 23332720 is about 285.7514589728.

The spelling of 23332720 in words is "twenty-three million, three hundred thirty-two thousand, seven hundred twenty".