7281075828 has 48 divisors (see below), whose sum is σ = 18301398080. Its totient is φ = 2239674624.

The previous prime is 7281075827. The next prime is 7281075859. The reversal of 7281075828 is 8285701827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7281075827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1017768 + ... + 1024896.

Almost surely, 2^7281075828 is an apocalyptic number.

7281075828 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

7281075828 is an abundant number, since it is smaller than the sum of its proper divisors (11020322252).

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

7281075828 is a wasteful number, since it uses less digits than its factorization.

7281075828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13696 (or 13694 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 48.

The square root of 7281075828 is about 85329.2202472283. The cubic root of 7281075828 is about 1938.1996820751.

The spelling of 7281075828 in words is "seven billion, two hundred eighty-one million, seventy-five thousand, eight hundred twenty-eight".