1805028 has 24 divisors (see below), whose sum is σ = 4233600. Its totient is φ = 598560.

The previous prime is 1805003. The next prime is 1805039. The reversal of 1805028 is 8205081.

It is a junction number, because it is equal to n+sod(n) for n = 1804989 and 1805007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3973 + ... + 4403.

It is an arithmetic number, because the mean of its divisors is an integer number (176400).

2^1805028 is an apocalyptic number.

It is an amenable number.

1805028 is an abundant number, since it is smaller than the sum of its proper divisors (2428572).

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

1805028 is a wasteful number, since it uses less digits than its factorization.

1805028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787 (or 785 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 1805028 is about 1343.5133047350. The cubic root of 1805028 is about 121.7571987305.

The spelling of 1805028 in words is "one million, eight hundred five thousand, twenty-eight".