22731878400 has 936 divisors, whose sum is σ = 96823124352. Its totient is φ = 4571136000.

The previous prime is 22731878383. The next prime is 22731878401. The reversal of 22731878400 is 487813722.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22731878401) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 733286385 + ... + 733286415.

Almost surely, 2^22731878400 is an apocalyptic number.

22731878400 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 22731878400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48411562176).

22731878400 is an abundant number, since it is smaller than the sum of its proper divisors (74091245952).

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

22731878400 is a wasteful number, since it uses less digits than its factorization.

22731878400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The spelling of 22731878400 in words is "twenty-two billion, seven hundred thirty-one million, eight hundred seventy-eight thousand, four hundred".