23418037920 has 192 divisors, whose sum is σ = 75838581504. Its totient is φ = 6071869440.

The previous prime is 23418037901. The next prime is 23418037943. The reversal of 23418037920 is 2973081432.

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, 2483134 + ... + 2492546.

It is an arithmetic number, because the mean of its divisors is an integer number (394992612).

Almost surely, 2^23418037920 is an apocalyptic number.

23418037920 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 23418037920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37919290752).

23418037920 is an abundant number, since it is smaller than the sum of its proper divisors (52420543584).

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

23418037920 is a wasteful number, since it uses less digits than its factorization.

23418037920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9575 (or 9567 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 23418037920 in words is "twenty-three billion, four hundred eighteen million, thirty-seven thousand, nine hundred twenty".