7247208228 has 96 divisors (see below), whose sum is σ = 19830652800. Its totient is φ = 2039675904.

The previous prime is 7247208217. The next prime is 7247208251. The reversal of 7247208228 is 8228027427.

It is a self number, because there is not a number n which added to its sum of digits gives 7247208228.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43800 + ... + 128112.

It is an arithmetic number, because the mean of its divisors is an integer number (206569300).

Almost surely, 2^7247208228 is an apocalyptic number.

7247208228 is a gapful number since it is divisible by the number (78) 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 7247208228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9915326400).

7247208228 is an abundant number, since it is smaller than the sum of its proper divisors (12583444572).

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

7247208228 is a wasteful number, since it uses less digits than its factorization.

7247208228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84381 (or 84379 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 42.

The square root of 7247208228 is about 85130.5364014582. The cubic root of 7247208228 is about 1935.1898607179.

The spelling of 7247208228 in words is "seven billion, two hundred forty-seven million, two hundred eight thousand, two hundred twenty-eight".