1028356 has 24 divisors (see below), whose sum is σ = 2166080. Its totient is φ = 417312.

The previous prime is 1028333. The next prime is 1028389. The reversal of 1028356 is 6538201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1028356.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435 + ... + 1498.

2^1028356 is an apocalyptic number.

It is an amenable number.

1028356 is an abundant number, since it is smaller than the sum of its proper divisors (1137724).

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

1028356 is a wasteful number, since it uses less digits than its factorization.

1028356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963 (or 1961 counting only the distinct ones).

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

The square root of 1028356 is about 1014.0788923945. The cubic root of 1028356 is about 100.9364041039.

The spelling of 1028356 in words is "one million, twenty-eight thousand, three hundred fifty-six".