22003235280 has 400 divisors, whose sum is σ = 82898600400. Its totient is φ = 5376761856.

The previous prime is 22003235251. The next prime is 22003235297. The reversal of 22003235280 is 8253230022.

22003235280 is a `hidden beast` number, since 2 + 200 + 32 + 352 + 80 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 11156429376 + 10846805904 = 105624^2 + 104148^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 12550884 + ... + 12552636.

It is an arithmetic number, because the mean of its divisors is an integer number (207246501).

Almost surely, 2^22003235280 is an apocalyptic number.

22003235280 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 22003235280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41449300200).

22003235280 is an abundant number, since it is smaller than the sum of its proper divisors (60895365120).

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

22003235280 is a wasteful number, since it uses less digits than its factorization.

22003235280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940 (or 1925 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The spelling of 22003235280 in words is "twenty-two billion, three million, two hundred thirty-five thousand, two hundred eighty".