7226226 has 48 divisors (see below), whose sum is σ = 18686880. Its totient is φ = 2063880.

The previous prime is 7226201. The next prime is 7226227. The reversal of 7226226 is 6226227.

7226226 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 7226226.

It is not an unprimeable number, because it can be changed into a prime (7226227) 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, 1281 + ... + 4011.

It is an arithmetic number, because the mean of its divisors is an integer number (389310).

Almost surely, 2^7226226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7226226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9343440).

7226226 is an abundant number, since it is smaller than the sum of its proper divisors (11460654).

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

7226226 is a wasteful number, since it uses less digits than its factorization.

7226226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2756 (or 2743 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 7226226 is about 2688.1640574935. The cubic root of 7226226 is about 193.3320458363.

Subtracting from 7226226 its reverse (6226227), we obtain a palindrome (999999).

The spelling of 7226226 in words is "seven million, two hundred twenty-six thousand, two hundred twenty-six".