422909382 has 32 divisors (see below), whose sum is σ = 973152000. Its totient is φ = 120018528.

The previous prime is 422909381. The next prime is 422909423. The reversal of 422909382 is 283909224.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 422909382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422909381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27532 + ... + 40047.

It is an arithmetic number, because the mean of its divisors is an integer number (30411000).

Almost surely, 2^422909382 is an apocalyptic number.

422909382 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

422909382 is an abundant number, since it is smaller than the sum of its proper divisors (550242618).

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

422909382 is a wasteful number, since it uses less digits than its factorization.

422909382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67740.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 422909382 is about 20564.7606842385. The cubic root of 422909382 is about 750.6124668208.

The spelling of 422909382 in words is "four hundred twenty-two million, nine hundred nine thousand, three hundred eighty-two".