23440409208 has 80 divisors (see below), whose sum is σ = 66554365680. Its totient is φ = 7706420352.

The previous prime is 23440409197. The next prime is 23440409219. The reversal of 23440409208 is 80290404432.

23440409208 is a `hidden beast` number, since 2 + 3 + 4 + 40 + 409 + 208 = 666.

It is an interprime number because it is at equal distance from previous prime (23440409197) and next prime (23440409219).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 200460 + ... + 295067.

It is an arithmetic number, because the mean of its divisors is an integer number (831929571).

Almost surely, 2^23440409208 is an apocalyptic number.

It is an amenable number.

23440409208 is an abundant number, since it is smaller than the sum of its proper divisors (43113956472).

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

23440409208 is a wasteful number, since it uses less digits than its factorization.

23440409208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495618 (or 495605 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The spelling of 23440409208 in words is "twenty-three billion, four hundred forty million, four hundred nine thousand, two hundred eight".