422835660 has 384 divisors, whose sum is σ = 1535385600. Its totient is φ = 95800320.

The previous prime is 422835659. The next prime is 422835661. The reversal of 422835660 is 66538224.

It is an interprime number because it is at equal distance from previous prime (422835659) and next prime (422835661).

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 (422835661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6310947 + ... + 6311013.

It is an arithmetic number, because the mean of its divisors is an integer number (3998400).

Almost surely, 2^422835660 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 422835660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (767692800).

422835660 is an abundant number, since it is smaller than the sum of its proper divisors (1112549940).

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

422835660 is a wasteful number, since it uses less digits than its factorization.

422835660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 422835660 is about 20562.9681709621. The cubic root of 422835660 is about 750.5688484395.

The spelling of 422835660 in words is "four hundred twenty-two million, eight hundred thirty-five thousand, six hundred sixty".