8222730 has 64 divisors (see below), whose sum is σ = 21835008. Its totient is φ = 1971200.

The previous prime is 8222717. The next prime is 8222737. The reversal of 8222730 is 372228.

8222730 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×8222730² = 135226577305800, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8222730.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8222737) 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, 11380 + ... + 12080.

It is an arithmetic number, because the mean of its divisors is an integer number (341172).

Almost surely, 2^8222730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8222730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10917504).

8222730 is an abundant number, since it is smaller than the sum of its proper divisors (13612278).

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

8222730 is a wasteful number, since it uses less digits than its factorization.

8222730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 8222730 is about 2867.5302962654. The cubic root of 8222730 is about 201.8391196891.

Adding to 8222730 its reverse (372228), we get a palindrome (8594958).

The spelling of 8222730 in words is "eight million, two hundred twenty-two thousand, seven hundred thirty".