2028650 has 24 divisors (see below), whose sum is σ = 4064844. Its totient is φ = 748800.

The previous prime is 2028647. The next prime is 2028667. The reversal of 2028650 is 568202.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 9409 + 2019241 = 97^2 + 1421^2 .

It is a Smith number, since the sum of its digits (23) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

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 11 ways as a sum of consecutive naturals, for example, 911 + ... + 2210.

2^2028650 is an apocalyptic number.

2028650 is an abundant number, since it is smaller than the sum of its proper divisors (2036194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2028650 is a wasteful number, since it uses less digits than its factorization.

2028650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3146 (or 3141 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2028650 is about 1424.3068489620. The cubic root of 2028650 is about 126.5908672379.

The spelling of 2028650 in words is "two million, twenty-eight thousand, six hundred fifty".