22204317240 has 512 divisors, whose sum is σ = 87422976000. Its totient is φ = 4908169728.

The previous prime is 22204317209. The next prime is 22204317259. The reversal of 22204317240 is 4271340222.

22204317240 is a `hidden beast` number, since 2 + 220 + 431 + 7 + 2 + 4 + 0 = 666.

It is a super-2 number, since 2×22204317240² (a number of 21 digits) contains 22 as substring.

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 127 ways as a sum of consecutive naturals, for example, 29884309 + ... + 29885051.

It is an arithmetic number, because the mean of its divisors is an integer number (170748000).

Almost surely, 2^22204317240 is an apocalyptic number.

22204317240 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 22204317240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43711488000).

22204317240 is an abundant number, since it is smaller than the sum of its proper divisors (65218658760).

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

22204317240 is a wasteful number, since it uses less digits than its factorization.

22204317240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896 (or 886 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

Adding to 22204317240 its reverse (4271340222), we get a palindrome (26475657462).

The spelling of 22204317240 in words is "twenty-two billion, two hundred four million, three hundred seventeen thousand, two hundred forty".