2028459 has 12 divisors (see below), whose sum is σ = 2855976. Its totient is φ = 1280448.

The previous prime is 2028443. The next prime is 2028461. The reversal of 2028459 is 9548202.

It is not a de Polignac number, because 2028459 - 2⁴ = 2028443 is a prime.

It is a super-2 number, since 2×2028459² = 8229291829362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2028359) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147 + ... + 2019.

It is an arithmetic number, because the mean of its divisors is an integer number (237998).

2^2028459 is an apocalyptic number.

2028459 is a deficient number, since it is larger than the sum of its proper divisors (827517).

2028459 is a wasteful number, since it uses less digits than its factorization.

2028459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914 (or 1895 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 2028459 is about 1424.2397972252. The cubic root of 2028459 is about 126.5868942157.

The spelling of 2028459 in words is "two million, twenty-eight thousand, four hundred fifty-nine".