422086588 has 72 divisors (see below), whose sum is σ = 944863920. Its totient is φ = 163134720.

The previous prime is 422086579. The next prime is 422086589. The reversal of 422086588 is 885680224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422086589) 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, 294658 + ... + 296086.

It is an arithmetic number, because the mean of its divisors is an integer number (13123110).

Almost surely, 2^422086588 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 422086588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (472431960).

422086588 is an abundant number, since it is smaller than the sum of its proper divisors (522777332).

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

422086588 is a wasteful number, since it uses less digits than its factorization.

422086588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595 (or 1586 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 43.

The square root of 422086588 is about 20544.7459950227. The cubic root of 422086588 is about 750.1253645253.

The spelling of 422086588 in words is "four hundred twenty-two million, eighty-six thousand, five hundred eighty-eight".