2447075728 has 10 divisors (see below), whose sum is σ = 4741209254. Its totient is φ = 1223537856.

The previous prime is 2447075717. The next prime is 2447075747. The reversal of 2447075728 is 8275707442.

It can be written as a sum of positive squares in only one way, i.e., 1793353104 + 653722624 = 42348^2 + 25568^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76471101 + ... + 76471132.

Almost surely, 2^2447075728 is an apocalyptic number.

It is an amenable number.

2447075728 is a deficient number, since it is larger than the sum of its proper divisors (2294133526).

2447075728 is a wasteful number, since it uses less digits than its factorization.

2447075728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152942241 (or 152942235 counting only the distinct ones).

The product of its (nonzero) digits is 878080, while the sum is 46.

The square root of 2447075728 is about 49467.9262553020. The cubic root of 2447075728 is about 1347.5631812021.

The spelling of 2447075728 in words is "two billion, four hundred forty-seven million, seventy-five thousand, seven hundred twenty-eight".