23523520 has 112 divisors (see below), whose sum is σ = 60899040. Its totient is φ = 8626176.

The previous prime is 23523473. The next prime is 23523541. The reversal of 23523520 is 2532532.

It is a junction number, because it is equal to n+sod(n) for n = 23523491 and 23523500.

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, 322204 + ... + 322276.

Almost surely, 2^23523520 is an apocalyptic number.

23523520 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 23523520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30449520).

23523520 is an abundant number, since it is smaller than the sum of its proper divisors (37375520).

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

23523520 is a wasteful number, since it uses less digits than its factorization.

23523520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 23523520 is about 4850.1051534993. The cubic root of 23523520 is about 286.5282427662.

The spelling of 23523520 in words is "twenty-three million, five hundred twenty-three thousand, five hundred twenty".