422662290 has 64 divisors (see below), whose sum is σ = 1045861632. Its totient is φ = 109267200.

The previous prime is 422662267. The next prime is 422662291. The reversal of 422662290 is 92266224.

It is a super-2 number, since 2×422662290² = 357286822776088200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (422662291) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 128304 + ... + 131556.

It is an arithmetic number, because the mean of its divisors is an integer number (16341588).

Almost surely, 2^422662290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422662290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (522930816).

422662290 is an abundant number, since it is smaller than the sum of its proper divisors (623199342).

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

422662290 is a wasteful number, since it uses less digits than its factorization.

422662290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3395.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 422662290 is about 20558.7521508481. The cubic root of 422662290 is about 750.4662523072.

The spelling of 422662290 in words is "four hundred twenty-two million, six hundred sixty-two thousand, two hundred ninety".