1028394 has 48 divisors (see below), whose sum is σ = 2446080. Its totient is φ = 311040.

The previous prime is 1028393. The next prime is 1028411. The reversal of 1028394 is 4938201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028393) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 10554 + ... + 10650.

It is an arithmetic number, because the mean of its divisors is an integer number (50960).

2^1028394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1028394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1223040).

1028394 is an abundant number, since it is smaller than the sum of its proper divisors (1417686).

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

1028394 is a wasteful number, since it uses less digits than its factorization.

1028394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1028394 is about 1014.0976284362. The cubic root of 1028394 is about 100.9376473621.

The spelling of 1028394 in words is "one million, twenty-eight thousand, three hundred ninety-four".