1008728128 has 14 divisors (see below), whose sum is σ = 2001695006. Its totient is φ = 504364032.

The previous prime is 1008728117. The next prime is 1008728137. The reversal of 1008728128 is 8218278001.

1008728128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 720815104 + 287913024 = 26848^2 + 16968^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7880625 + ... + 7880752.

Almost surely, 2^1008728128 is an apocalyptic number.

It is an amenable number.

1008728128 is a deficient number, since it is larger than the sum of its proper divisors (992966878).

1008728128 is an equidigital number, since it uses as much as digits as its factorization.

1008728128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15761389 (or 15761379 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 37.

The square root of 1008728128 is about 31760.4806008977. The cubic root of 1008728128 is about 1002.9009523379.

The spelling of 1008728128 in words is "one billion, eight million, seven hundred twenty-eight thousand, one hundred twenty-eight".