23401385808 has 20 divisors (see below), whose sum is σ = 60453580128. Its totient is φ = 7800461920.

The previous prime is 23401385807. The next prime is 23401385809. The reversal of 23401385808 is 80858310432.

It is an interprime number because it is at equal distance from previous prime (23401385807) and next prime (23401385809).

It is a self number, because there is not a number n which added to its sum of digits gives 23401385808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23401385807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243764388 + ... + 243764483.

Almost surely, 2^23401385808 is an apocalyptic number.

It is an amenable number.

23401385808 is an abundant number, since it is smaller than the sum of its proper divisors (37052194320).

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

23401385808 is a wasteful number, since it uses less digits than its factorization.

23401385808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487528882 (or 487528876 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The spelling of 23401385808 in words is "twenty-three billion, four hundred one million, three hundred eighty-five thousand, eight hundred eight".