7222256 has 20 divisors (see below), whose sum is σ = 14445504. Its totient is φ = 3494400.

The previous prime is 7222219. The next prime is 7222279. The reversal of 7222256 is 6522227.

7222256 is an admirable number.

It is a d-powerful number, because it can be written as 7⁸ + 2⁵ + 2¹⁷ + 2¹⁸ + 2²⁰ + 5⁶ + 6 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6785 + ... + 7776.

Almost surely, 2^7222256 is an apocalyptic number.

It is an amenable number.

7222256 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7222256 is a wasteful number, since it uses less digits than its factorization.

7222256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14600 (or 14594 counting only the distinct ones).

The product of its digits is 3360, while the sum is 26.

The square root of 7222256 is about 2687.4255338521. The cubic root of 7222256 is about 193.2966345985.

The spelling of 7222256 in words is "seven million, two hundred twenty-two thousand, two hundred fifty-six".