23704560 has 240 divisors, whose sum is σ = 90181728. Its totient is φ = 5529600.

The previous prime is 23704547. The next prime is 23704561. The reversal of 23704560 is 6540732.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23704561) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 324684 + ... + 324756.

Almost surely, 2^23704560 is an apocalyptic number.

23704560 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 23704560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45090864).

23704560 is an abundant number, since it is smaller than the sum of its proper divisors (66477168).

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

23704560 is a wasteful number, since it uses less digits than its factorization.

23704560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 23704560 is about 4868.7328947068. The cubic root of 23704560 is about 287.2614176939.

The spelling of 23704560 in words is "twenty-three million, seven hundred four thousand, five hundred sixty".