7224256 has 56 divisors (see below), whose sum is σ = 16286480. Its totient is φ = 3151872.

The previous prime is 7224251. The next prime is 7224281. The reversal of 7224256 is 6524227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7224251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15580 + ... + 16036.

It is an arithmetic number, because the mean of its divisors is an integer number (290830).

Almost surely, 2^7224256 is an apocalyptic number.

7224256 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7224256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8143240).

7224256 is an abundant number, since it is smaller than the sum of its proper divisors (9062224).

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

7224256 is a wasteful number, since it uses less digits than its factorization.

7224256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501 (or 491 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 7224256 is about 2687.7976114284. The cubic root of 7224256 is about 193.3144756346.

The spelling of 7224256 in words is "seven million, two hundred twenty-four thousand, two hundred fifty-six".