7228281008 has 20 divisors (see below), whose sum is σ = 15082086768. Its totient is φ = 3336129600.

The previous prime is 7228280989. The next prime is 7228281023. The reversal of 7228281008 is 8001828227.

It is a super-2 number, since 2×7228281008² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17375468 + ... + 17375883.

Almost surely, 2^7228281008 is an apocalyptic number.

It is an amenable number.

7228281008 is an abundant number, since it is smaller than the sum of its proper divisors (7853805760).

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

7228281008 is a wasteful number, since it uses less digits than its factorization.

7228281008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34751372 (or 34751366 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 38.

The square root of 7228281008 is about 85019.2978564279. The cubic root of 7228281008 is about 1933.5037081191.

The spelling of 7228281008 in words is "seven billion, two hundred twenty-eight million, two hundred eighty-one thousand, eight".