7228728582 has 8 divisors (see below), whose sum is σ = 14457457176. Its totient is φ = 2409576192.

The previous prime is 7228728569. The next prime is 7228728601. The reversal of 7228728582 is 2858278227.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

7228728582 is an admirable number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602394043 + ... + 602394054.

It is an arithmetic number, because the mean of its divisors is an integer number (1807182147).

Almost surely, 2^7228728582 is an apocalyptic number.

7228728582 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.

7228728582 is a wasteful number, since it uses less digits than its factorization.

7228728582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204788102.

The product of its digits is 2007040, while the sum is 51.

The square root of 7228728582 is about 85021.9300063225. The cubic root of 7228728582 is about 1933.5436147086.

The spelling of 7228728582 in words is "seven billion, two hundred twenty-eight million, seven hundred twenty-eight thousand, five hundred eighty-two".