422734284 has 72 divisors (see below), whose sum is σ = 1238485248. Its totient is φ = 119075040.

The previous prime is 422734283. The next prime is 422734297. The reversal of 422734284 is 482437224.

422734284 is a `hidden beast` number, since 4 + 227 + 3 + 428 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (422734283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6079 + ... + 29705.

It is an arithmetic number, because the mean of its divisors is an integer number (17201184).

Almost surely, 2^422734284 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422734284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (619242624).

422734284 is an abundant number, since it is smaller than the sum of its proper divisors (815750964).

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

422734284 is a wasteful number, since it uses less digits than its factorization.

422734284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23715 (or 23710 counting only the distinct ones).

The product of its digits is 86016, while the sum is 36.

The square root of 422734284 is about 20560.5030094110. The cubic root of 422734284 is about 750.5088600039.

The spelling of 422734284 in words is "four hundred twenty-two million, seven hundred thirty-four thousand, two hundred eighty-four".