23820480 has 140 divisors (see below), whose sum is σ = 84825840. Its totient is φ = 6345216.

The previous prime is 23820473. The next prime is 23820487. The reversal of 23820480 is 8402832.

It is an interprime number because it is at equal distance from previous prime (23820473) and next prime (23820487).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23820487) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25461 + ... + 26379.

Almost surely, 2^23820480 is an apocalyptic number.

23820480 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 23820480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42412920).

23820480 is an abundant number, since it is smaller than the sum of its proper divisors (61005360).

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

23820480 is an equidigital number, since it uses as much as digits as its factorization.

23820480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948 (or 929 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 23820480 is about 4880.6229110637. The cubic root of 23820480 is about 287.7289115768.

The spelling of 23820480 in words is "twenty-three million, eight hundred twenty thousand, four hundred eighty".