1028087808 has 112 divisors (see below), whose sum is σ = 2991404736. Its totient is φ = 311459840.

The previous prime is 1028087807. The next prime is 1028087843. The reversal of 1028087808 is 8087808201.

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 1028087808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028087807) 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 7 ways as a sum of consecutive naturals, for example, 268435 + ... + 272237.

Almost surely, 2^1028087808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1028087808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1495702368).

1028087808 is an abundant number, since it is smaller than the sum of its proper divisors (1963316928).

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

1028087808 is an equidigital number, since it uses as much as digits as its factorization.

1028087808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3843 (or 3819 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 42.

The square root of 1028087808 is about 32063.8083826610. The cubic root of 1028087808 is about 1009.2762870912.

It can be divided in two parts, 1028087 and 808, that added together give a triangular number (1028895 = T₁₄₃₄).

The spelling of 1028087808 in words is "one billion, twenty-eight million, eighty-seven thousand, eight hundred eight".