422499834 has 64 divisors (see below), whose sum is σ = 1003726080. Its totient is φ = 131408640.

The previous prime is 422499817. The next prime is 422499839. The reversal of 422499834 is 438994224.

It is a happy number.

It is a super-2 number, since 2×422499834² = 357012219460055112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 422499834.

It is not an unprimeable number, because it can be changed into a prime (422499839) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46774 + ... + 55070.

It is an arithmetic number, because the mean of its divisors is an integer number (15683220).

Almost surely, 2^422499834 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422499834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (501863040).

422499834 is an abundant number, since it is smaller than the sum of its proper divisors (581226246).

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

422499834 is a wasteful number, since it uses less digits than its factorization.

422499834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8372 (or 8366 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 422499834 is about 20554.8007531087. The cubic root of 422499834 is about 750.3700893485.

The spelling of 422499834 in words is "four hundred twenty-two million, four hundred ninety-nine thousand, eight hundred thirty-four".