22193505400 has 144 divisors (see below), whose sum is σ = 56883546720. Its totient is φ = 8046720000.

The previous prime is 22193505371. The next prime is 22193505403. The reversal of 22193505400 is 450539122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22193505403) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9703057 + ... + 9705343.

It is an arithmetic number, because the mean of its divisors is an integer number (395024630).

Almost surely, 2^22193505400 is an apocalyptic number.

22193505400 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 22193505400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28441773360).

22193505400 is an abundant number, since it is smaller than the sum of its proper divisors (34690041320).

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

22193505400 is a wasteful number, since it uses less digits than its factorization.

22193505400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2726 (or 2706 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 22193505400 in words is "twenty-two billion, one hundred ninety-three million, five hundred five thousand, four hundred".