2001252928 has 28 divisors (see below), whose sum is σ = 3994213500. Its totient is φ = 994836992.

The previous prime is 2001252907. The next prime is 2001252947. The reversal of 2001252928 is 8292521002.

It can be written as a sum of positive squares in 2 ways, for example, as 1188318784 + 812934144 = 34472^2 + 28512^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2001252928.

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, 79303 + ... + 101446.

Almost surely, 2^2001252928 is an apocalyptic number.

It is an amenable number.

2001252928 is a deficient number, since it is larger than the sum of its proper divisors (1992960572).

2001252928 is a wasteful number, since it uses less digits than its factorization.

2001252928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180934 (or 180924 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 2001252928 is about 44735.3655176752. The cubic root of 2001252928 is about 1260.1840933670.

The spelling of 2001252928 in words is "two billion, one million, two hundred fifty-two thousand, nine hundred twenty-eight".