7228782 has 36 divisors (see below), whose sum is σ = 17220840. Its totient is φ = 2189880.

The previous prime is 7228769. The next prime is 7228783. The reversal of 7228782 is 2878227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7228783) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 519 + ... + 3837.

Almost surely, 2^7228782 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7228782, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8610420).

7228782 is an abundant number, since it is smaller than the sum of its proper divisors (9992058).

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

7228782 is a wasteful number, since it uses less digits than its factorization.

7228782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3349 (or 3335 counting only the distinct ones).

The product of its digits is 25088, while the sum is 36.

The square root of 7228782 is about 2688.6394328731. The cubic root of 7228782 is about 193.3548377454.

The spelling of 7228782 in words is "seven million, two hundred twenty-eight thousand, seven hundred eighty-two".