7222722 has 48 divisors (see below), whose sum is σ = 16601760. Its totient is φ = 2086656.

The previous prime is 7222687. The next prime is 7222723. The reversal of 7222722 is 2272227.

7222722 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 7222692 and 7222701.

It is not an unprimeable number, because it can be changed into a prime (7222723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17029 + ... + 17447.

It is an arithmetic number, because the mean of its divisors is an integer number (345870).

Almost surely, 2^7222722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7222722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8300880).

7222722 is an abundant number, since it is smaller than the sum of its proper divisors (9379038).

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

7222722 is a wasteful number, since it uses less digits than its factorization.

7222722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467 (or 454 counting only the distinct ones).

The product of its digits is 1568, while the sum is 24.

The square root of 7222722 is about 2687.5122325303. The cubic root of 7222722 is about 193.3007918542.

Adding to 7222722 its reverse (2272227), we get a palindrome (9494949).

The spelling of 7222722 in words is "seven million, two hundred twenty-two thousand, seven hundred twenty-two".