7229885728 has 48 divisors (see below), whose sum is σ = 15336216000. Its totient is φ = 3335245056.

The previous prime is 7229885723. The next prime is 7229885753. The reversal of 7229885728 is 8275889227.

It is not an unprimeable number, because it can be changed into a prime (7229885723) 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, 1453101 + ... + 1458067.

It is an arithmetic number, because the mean of its divisors is an integer number (319504500).

Almost surely, 2^7229885728 is an apocalyptic number.

It is an amenable number.

7229885728 is an abundant number, since it is smaller than the sum of its proper divisors (8106330272).

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

7229885728 is a wasteful number, since it uses less digits than its factorization.

7229885728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8489 (or 8481 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 58.

The square root of 7229885728 is about 85028.7347195053. The cubic root of 7229885728 is about 1933.6467805171.

The spelling of 7229885728 in words is "seven billion, two hundred twenty-nine million, eight hundred eighty-five thousand, seven hundred twenty-eight".