23420880 has 160 divisors (see below), whose sum is σ = 92256000. Its totient is φ = 5349888.

The previous prime is 23420879. The next prime is 23420921. The reversal of 23420880 is 8802432.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14346 + ... + 15894.

It is an arithmetic number, because the mean of its divisors is an integer number (576600).

Almost surely, 2^23420880 is an apocalyptic number.

23420880 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 23420880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46128000).

23420880 is an abundant number, since it is smaller than the sum of its proper divisors (68835120).

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

23420880 is a wasteful number, since it uses less digits than its factorization.

23420880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578 (or 1566 counting only the distinct ones).

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

The square root of 23420880 is about 4839.5123721301. The cubic root of 23420880 is about 286.1108996623.

It can be divided in two parts, 23 and 420880, that added together give a triangular number (420903 = T₉₁₇).

The spelling of 23420880 in words is "twenty-three million, four hundred twenty thousand, eight hundred eighty".