1028556 has 18 divisors (see below), whose sum is σ = 2600052. Its totient is φ = 342840.

The previous prime is 1028509. The next prime is 1028557. The reversal of 1028556 is 6558201.

1028556 is a `hidden beast` number, since 102 + 8 + 556 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (1028557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14250 + ... + 14321.

2^1028556 is an apocalyptic number.

It is an amenable number.

1028556 is an abundant number, since it is smaller than the sum of its proper divisors (1571496).

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

1028556 is a wasteful number, since it uses less digits than its factorization.

1028556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28581 (or 28576 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 1028556 is about 1014.1774992574. The cubic root of 1028556 is about 100.9429472246.

The spelling of 1028556 in words is "one million, twenty-eight thousand, five hundred fifty-six".