422400222440 has 32 divisors (see below), whose sum is σ = 1086172001280. Its totient is φ = 144822933312.

The previous prime is 422400222421. The next prime is 422400222457. The reversal of 422400222440 is 44222004224.

It is a super-2 number, since 2×422400222440² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 754285832 + ... + 754286391.

It is an arithmetic number, because the mean of its divisors is an integer number (33942875040).

Almost surely, 2^422400222440 is an apocalyptic number.

422400222440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422400222440 is an abundant number, since it is smaller than the sum of its proper divisors (663771778840).

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

422400222440 is a wasteful number, since it uses less digits than its factorization.

422400222440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508572241 (or 1508572237 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 422400222440 its reverse (44222004224), we get a palindrome (466622226664).

The spelling of 422400222440 in words is "four hundred twenty-two billion, four hundred million, two hundred twenty-two thousand, four hundred forty".