2001028 has 6 divisors (see below), whose sum is σ = 3501806. Its totient is φ = 1000512.

The previous prime is 2000989. The next prime is 2001037. The reversal of 2001028 is 8201002.

It can be written as a sum of positive squares in only one way, i.e., 1364224 + 636804 = 1168^2 + 798^2 .

It is a super-2 number, since 2×2001028² = 8008226113568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2000999 and 2001017.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250125 + ... + 250132.

2^2001028 is an apocalyptic number.

It is an amenable number.

2001028 is a deficient number, since it is larger than the sum of its proper divisors (1500778).

2001028 is a wasteful number, since it uses less digits than its factorization.

2001028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500261 (or 500259 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2001028 is about 1414.5769685669. The cubic root of 2001028 is about 126.0136879394.

The spelling of 2001028 in words is "two million, one thousand, twenty-eight".