22406590800 has 720 divisors, whose sum is σ = 89992775808. Its totient is φ = 5109350400.

The previous prime is 22406590799. The next prime is 22406590813. The reversal of 22406590800 is 809560422.

It is a happy number.

22406590800 is a `hidden beast` number, since 22 + 40 + 6 + 590 + 8 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a super-2 number, since 2×22406590800² (a number of 22 digits) contains 22 as substring.

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 143 ways as a sum of consecutive naturals, for example, 66488232 + ... + 66488568.

Almost surely, 2^22406590800 is an apocalyptic number.

22406590800 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 22406590800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44996387904).

22406590800 is an abundant number, since it is smaller than the sum of its proper divisors (67586185008).

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

22406590800 is a wasteful number, since it uses less digits than its factorization.

22406590800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 22406590800 in words is "twenty-two billion, four hundred six million, five hundred ninety thousand, eight hundred".