1028850 has 48 divisors (see below), whose sum is σ = 2693280. Its totient is φ = 259920.

The previous prime is 1028843. The next prime is 1028873. The reversal of 1028850 is 588201.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1028850.

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 23 ways as a sum of consecutive naturals, for example, 54141 + ... + 54159.

It is an arithmetic number, because the mean of its divisors is an integer number (56110).

2^1028850 is an apocalyptic number.

1028850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1028850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1346640).

1028850 is an abundant number, since it is smaller than the sum of its proper divisors (1664430).

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

1028850 is an equidigital number, since it uses as much as digits as its factorization.

1028850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72 (or 29 counting only the distinct ones).

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

The square root of 1028850 is about 1014.3224339430. The cubic root of 1028850 is about 100.9525640723.

The spelling of 1028850 in words is "one million, twenty-eight thousand, eight hundred fifty".