22309985800 has 48 divisors (see below), whose sum is σ = 51883526340. Its totient is φ = 8921790720.

The previous prime is 22309985779. The next prime is 22309985813. The reversal of 22309985800 is 858990322.

It can be written as a sum of positive squares in 6 ways, for example, as 5408425764 + 16901560036 = 73542^2 + 130006^2 .

It is a super-3 number, since 3×22309985800³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 975294 + ... + 997906.

Almost surely, 2^22309985800 is an apocalyptic number.

22309985800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22309985800 is an abundant number, since it is smaller than the sum of its proper divisors (29573540540).

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

22309985800 is a wasteful number, since it uses less digits than its factorization.

22309985800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27562 (or 27553 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 22309985800 in words is "twenty-two billion, three hundred nine million, nine hundred eighty-five thousand, eight hundred".