422691056 has 40 divisors (see below), whose sum is σ = 857088000. Its totient is φ = 201561536.

The previous prime is 422691053. The next prime is 422691067. The reversal of 422691056 is 650196224.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422691053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139445 + ... + 142443.

It is an arithmetic number, because the mean of its divisors is an integer number (21427200).

Almost surely, 2^422691056 is an apocalyptic number.

422691056 is a gapful number since it is divisible by the number (46) 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 422691056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (428544000).

422691056 is an abundant number, since it is smaller than the sum of its proper divisors (434396944).

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

422691056 is a wasteful number, since it uses less digits than its factorization.

422691056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3413 (or 3407 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 422691056 is about 20559.4517436628. The cubic root of 422691056 is about 750.4832772646.

The spelling of 422691056 in words is "four hundred twenty-two million, six hundred ninety-one thousand, fifty-six".