2028331 has 4 divisors (see below), whose sum is σ = 2036664. Its totient is φ = 2020000.

The previous prime is 2028329. The next prime is 2028359. The reversal of 2028331 is 1338202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2028331 - 2¹ = 2028329 is a prime.

It is a super-2 number, since 2×2028331² = 8228253291122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2028299 and 2028308.

It is not an unprimeable number, because it can be changed into a prime (2028371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3790 + ... + 4291.

It is an arithmetic number, because the mean of its divisors is an integer number (509166).

2^2028331 is an apocalyptic number.

2028331 is a deficient number, since it is larger than the sum of its proper divisors (8333).

2028331 is an equidigital number, since it uses as much as digits as its factorization.

2028331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8332.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2028331 is about 1424.1948602632. The cubic root of 2028331 is about 126.5842315272.

The spelling of 2028331 in words is "two million, twenty-eight thousand, three hundred thirty-one".