422278280 has 64 divisors (see below), whose sum is σ = 1014681600. Its totient is φ = 157812480.

The previous prime is 422278261. The next prime is 422278301. The reversal of 422278280 is 82872224.

It is a self number, because there is not a number n which added to its sum of digits gives 422278280.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30089 + ... + 41831.

It is an arithmetic number, because the mean of its divisors is an integer number (15854400).

Almost surely, 2^422278280 is an apocalyptic number.

422278280 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 422278280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (507340800).

422278280 is an abundant number, since it is smaller than the sum of its proper divisors (592403320).

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

422278280 is a wasteful number, since it uses less digits than its factorization.

422278280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11814 (or 11810 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 35.

The square root of 422278280 is about 20549.4106971465. The cubic root of 422278280 is about 750.2389046321.

The spelling of 422278280 in words is "four hundred twenty-two million, two hundred seventy-eight thousand, two hundred eighty".