422709340 has 72 divisors (see below), whose sum is σ = 946294272. Its totient is φ = 158578560.

The previous prime is 422709319. The next prime is 422709377. The reversal of 422709340 is 43907224.

It is a super-2 number, since 2×422709340² = 357366372246471200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 916710 + ... + 917170.

It is an arithmetic number, because the mean of its divisors is an integer number (13142976).

Almost surely, 2^422709340 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 422709340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (473147136).

422709340 is an abundant number, since it is smaller than the sum of its proper divisors (523584932).

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

422709340 is a wasteful number, since it uses less digits than its factorization.

422709340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635 (or 614 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 422709340 is about 20559.8964005172. The cubic root of 422709340 is about 750.4940981216.

The spelling of 422709340 in words is "four hundred twenty-two million, seven hundred nine thousand, three hundred forty".