1028355 has 16 divisors (see below), whose sum is σ = 1658880. Its totient is φ = 543968.

The previous prime is 1028333. The next prime is 1028389. The reversal of 1028355 is 5538201.

1028355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1028355 - 2⁸ = 1028099 is a prime.

1028355 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2494 + ... + 2876.

It is an arithmetic number, because the mean of its divisors is an integer number (103680).

2^1028355 is an apocalyptic number.

1028355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1028355 is a deficient number, since it is larger than the sum of its proper divisors (630525).

1028355 is a wasteful number, since it uses less digits than its factorization.

1028355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1028355 is about 1014.0783993361. The cubic root of 1028355 is about 100.9363713862.

It can be divided in two parts, 10283 and 55, that multiplied together give a palindrome (565565).

The spelling of 1028355 in words is "one million, twenty-eight thousand, three hundred fifty-five".