7280228250 has 48 divisors (see below), whose sum is σ = 19685743272. Its totient is φ = 1941393600.

The previous prime is 7280228243. The next prime is 7280228269. The reversal of 7280228250 is 528220827.

It can be written as a sum of positive squares in 4 ways, for example, as 526840209 + 6753388041 = 22953^2 + 82179^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1615579 + ... + 1620078.

Almost surely, 2^7280228250 is an apocalyptic number.

7280228250 is an abundant number, since it is smaller than the sum of its proper divisors (12405515022).

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

7280228250 is a wasteful number, since it uses less digits than its factorization.

7280228250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3235680 (or 3235667 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 7280228250 is about 85324.2535859529. The cubic root of 7280228250 is about 1938.1244716164.

The spelling of 7280228250 in words is "seven billion, two hundred eighty million, two hundred twenty-eight thousand, two hundred fifty".