422730 has 96 divisors (see below), whose sum is σ = 1392768. Its totient is φ = 86400.

The previous prime is 422711. The next prime is 422749. The reversal of 422730 is 37224.

It is a happy number.

422730 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (422711) and next prime (422749).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 422730.

It is an unprimeable number.

422730 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6900 + ... + 6960.

It is an arithmetic number, because the mean of its divisors is an integer number (14508).

2⁴²²⁷³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (696384).

422730 is an abundant number, since it is smaller than the sum of its proper divisors (970038).

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

422730 is a wasteful number, since it uses less digits than its factorization.

422730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 422730 is about 650.1768990052. The cubic root of 422730 is about 75.0506324770.

Adding to 422730 its reverse (37224), we get a palindrome (459954).

It can be divided in two parts, 42 and 2730, that added together give a palindrome (2772).

The spelling of 422730 in words is "four hundred twenty-two thousand, seven hundred thirty".