422331500 has 48 divisors (see below), whose sum is σ = 931615776. Its totient is φ = 167240000.

The previous prime is 422331491. The next prime is 422331517. The reversal of 422331500 is 5133224.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46319 + ... + 54681.

It is an arithmetic number, because the mean of its divisors is an integer number (19408662).

Almost surely, 2^422331500 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 422331500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (465807888).

422331500 is an abundant number, since it is smaller than the sum of its proper divisors (509284276).

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

422331500 is a wasteful number, since it uses less digits than its factorization.

422331500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8483 (or 8471 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 422331500 is about 20550.7055839939. The cubic root of 422331500 is about 750.2704210034.

Adding to 422331500 its reverse (5133224), we get a palindrome (427464724).

The spelling of 422331500 in words is "four hundred twenty-two million, three hundred thirty-one thousand, five hundred".