422871306 has 64 divisors (see below), whose sum is σ = 1004040576. Its totient is φ = 117043200.

The previous prime is 422871289. The next prime is 422871313. The reversal of 422871306 is 603178224.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80686 + ... + 85766.

It is an arithmetic number, because the mean of its divisors is an integer number (15688134).

Almost surely, 2^422871306 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422871306, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (502020288).

422871306 is an abundant number, since it is smaller than the sum of its proper divisors (581169270).

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

422871306 is a wasteful number, since it uses less digits than its factorization.

422871306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5207.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 422871306 is about 20563.8349049977. The cubic root of 422871306 is about 750.5899393959.

The spelling of 422871306 in words is "four hundred twenty-two million, eight hundred seventy-one thousand, three hundred six".