1028902806 has 24 divisors (see below), whose sum is σ = 2234081304. Its totient is φ = 342230400.

The previous prime is 1028902789. The next prime is 1028902811. The reversal of 1028902806 is 6082098201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52795 + ... + 69606.

It is an arithmetic number, because the mean of its divisors is an integer number (93086721).

Almost surely, 2^1028902806 is an apocalyptic number.

1028902806 is an abundant number, since it is smaller than the sum of its proper divisors (1205178498).

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

1028902806 is a wasteful number, since it uses less digits than its factorization.

1028902806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122876 (or 122873 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1028902806 is about 32076.5148667994. The cubic root of 1028902806 is about 1009.5429118187.

The spelling of 1028902806 in words is "one billion, twenty-eight million, nine hundred two thousand, eight hundred six".