23904560 has 40 divisors (see below), whose sum is σ = 56878800. Its totient is φ = 9338112.

The previous prime is 23904557. The next prime is 23904563. The reversal of 23904560 is 6540932.

It is an interprime number because it is at equal distance from previous prime (23904557) and next prime (23904563).

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

It is not an unprimeable number, because it can be changed into a prime (23904563) 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, 35 + ... + 6914.

It is an arithmetic number, because the mean of its divisors is an integer number (1421970).

Almost surely, 2^23904560 is an apocalyptic number.

23904560 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 23904560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28439400).

23904560 is an abundant number, since it is smaller than the sum of its proper divisors (32974240).

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

23904560 is a wasteful number, since it uses less digits than its factorization.

23904560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7005 (or 6999 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 23904560 is about 4889.2289780701. The cubic root of 23904560 is about 288.0670497181.

The spelling of 23904560 in words is "twenty-three million, nine hundred four thousand, five hundred sixty".