23720580 has 192 divisors, whose sum is σ = 82790400. Its totient is φ = 5598720.

The previous prime is 23720561. The next prime is 23720597. The reversal of 23720580 is 8502732.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 217566 + ... + 217674.

It is an arithmetic number, because the mean of its divisors is an integer number (431200).

Almost surely, 2^23720580 is an apocalyptic number.

23720580 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 23720580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41395200).

23720580 is an abundant number, since it is smaller than the sum of its proper divisors (59069820).

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

23720580 is a wasteful number, since it uses less digits than its factorization.

23720580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 23720580 is about 4870.3778087536. The cubic root of 23720580 is about 287.3261153949.

The spelling of 23720580 in words is "twenty-three million, seven hundred twenty thousand, five hundred eighty".