7220346 has 48 divisors (see below), whose sum is σ = 17236800. Its totient is φ = 2009280.

The previous prime is 7220299. The next prime is 7220347. The reversal of 7220346 is 6430227.

It is not an unprimeable number, because it can be changed into a prime (7220347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11755 + ... + 12353.

It is an arithmetic number, because the mean of its divisors is an integer number (359100).

Almost surely, 2^7220346 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7220346, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8618400).

7220346 is an abundant number, since it is smaller than the sum of its proper divisors (10016454).

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

7220346 is a wasteful number, since it uses less digits than its factorization.

7220346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659 (or 652 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 7220346 is about 2687.0701516708. The cubic root of 7220346 is about 193.2795933341.

The spelling of 7220346 in words is "seven million, two hundred twenty thousand, three hundred forty-six".