1028444886 has 48 divisors (see below), whose sum is σ = 2696432544. Its totient is φ = 276556032.

The previous prime is 1028444821. The next prime is 1028444887. The reversal of 1028444886 is 6884448201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028444887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 237925 + ... + 242208.

It is an arithmetic number, because the mean of its divisors is an integer number (56175678).

Almost surely, 2^1028444886 is an apocalyptic number.

1028444886 is an abundant number, since it is smaller than the sum of its proper divisors (1667987658).

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

1028444886 is a wasteful number, since it uses less digits than its factorization.

1028444886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480165 (or 480162 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 45.

The square root of 1028444886 is about 32069.3761398628. The cubic root of 1028444886 is about 1009.3931216778.

The spelling of 1028444886 in words is "one billion, twenty-eight million, four hundred forty-four thousand, eight hundred eighty-six".