23480640 has 168 divisors, whose sum is σ = 83685888. Its totient is φ = 6036480.

The previous prime is 23480593. The next prime is 23480647. The reversal of 23480640 is 4608432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23480647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89149 + ... + 89411.

Almost surely, 2^23480640 is an apocalyptic number.

23480640 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 23480640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41842944).

23480640 is an abundant number, since it is smaller than the sum of its proper divisors (60205248).

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

23480640 is a wasteful number, since it uses less digits than its factorization.

23480640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 23480640 is about 4845.6826144518. The cubic root of 23480640 is about 286.3540369214.

The spelling of 23480640 in words is "twenty-three million, four hundred eighty thousand, six hundred forty".