1028365 has 12 divisors (see below), whose sum is σ = 1337364. Its totient is φ = 758784.

The previous prime is 1028333. The next prime is 1028389. The reversal of 1028365 is 5638201.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 276676 + 751689 = 526^2 + 867^2 .

It is not a de Polignac number, because 1028365 - 2⁵ = 1028333 is a prime.

It is a Duffinian number.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 237 + ... + 1453.

It is an arithmetic number, because the mean of its divisors is an integer number (111447).

2^1028365 is an apocalyptic number.

It is an amenable number.

1028365 is a deficient number, since it is larger than the sum of its proper divisors (308999).

1028365 is a wasteful number, since it uses less digits than its factorization.

1028365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248 (or 1235 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1028365 is about 1014.0833299093. The cubic root of 1028365 is about 100.9366985626.

The spelling of 1028365 in words is "one million, twenty-eight thousand, three hundred sixty-five".