1028278298 has 8 divisors (see below), whose sum is σ = 1544595060. Its totient is φ = 513413280.

The previous prime is 1028278261. The next prime is 1028278301. The reversal of 1028278298 is 8928728201.

It can be written as a sum of positive squares in 2 ways, for example, as 770451049 + 257827249 = 27757^2 + 16057^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361163 + ... + 363998.

Almost surely, 2^1028278298 is an apocalyptic number.

1028278298 is a deficient number, since it is larger than the sum of its proper divisors (516316762).

1028278298 is an equidigital number, since it uses as much as digits as its factorization.

1028278298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725872.

The product of its (nonzero) digits is 258048, while the sum is 47.

The square root of 1028278298 is about 32066.7787281479. The cubic root of 1028278298 is about 1009.3386180729.

The spelling of 1028278298 in words is "one billion, twenty-eight million, two hundred seventy-eight thousand, two hundred ninety-eight".