23420718 has 32 divisors (see below), whose sum is σ = 52358400. Its totient is φ = 7760088.

The previous prime is 23420689. The next prime is 23420729. The reversal of 23420718 is 81702432.

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

It is a junction number, because it is equal to n+sod(n) for n = 23420691 and 23420700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8455 + ... + 10877.

It is an arithmetic number, because the mean of its divisors is an integer number (1636200).

Almost surely, 2^23420718 is an apocalyptic number.

23420718 is an abundant number, since it is smaller than the sum of its proper divisors (28937682).

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

23420718 is a wasteful number, since it uses less digits than its factorization.

23420718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2613 (or 2607 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 23420718 is about 4839.4956348777. The cubic root of 23420718 is about 286.1102399934.

The spelling of 23420718 in words is "twenty-three million, four hundred twenty thousand, seven hundred eighteen".