422222880 has 192 divisors, whose sum is σ = 1433738880. Its totient is φ = 104054784.

The previous prime is 422222851. The next prime is 422222887. The reversal of 422222880 is 88222224.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (422222887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 481002 + ... + 481878.

It is an arithmetic number, because the mean of its divisors is an integer number (7467390).

Almost surely, 2^422222880 is an apocalyptic number.

422222880 is a gapful number since it is divisible by the number (40) 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 422222880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (716869440).

422222880 is an abundant number, since it is smaller than the sum of its proper divisors (1011516000).

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

422222880 is a wasteful number, since it uses less digits than its factorization.

422222880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971 (or 963 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 30.

The square root of 422222880 is about 20548.0626824039. The cubic root of 422222880 is about 750.2060944727.

The spelling of 422222880 in words is "four hundred twenty-two million, two hundred twenty-two thousand, eight hundred eighty".