1002660128 has 24 divisors (see below), whose sum is σ = 1993537980. Its totient is φ = 496364800.

The previous prime is 1002660097. The next prime is 1002660149. The reversal of 1002660128 is 8210662001.

It can be written as a sum of positive squares in 2 ways, for example, as 999318544 + 3341584 = 31612^2 + 1828^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1002660097 and 1002660106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151883 + ... + 158346.

Almost surely, 2^1002660128 is an apocalyptic number.

It is an amenable number.

1002660128 is a deficient number, since it is larger than the sum of its proper divisors (990877852).

1002660128 is a wasteful number, since it uses less digits than its factorization.

1002660128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310340 (or 310332 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1002660128 is about 31664.8089841073. The cubic root of 1002660128 is about 1000.8859242398.

The spelling of 1002660128 in words is "one billion, two million, six hundred sixty thousand, one hundred twenty-eight".