1028312300 has 36 divisors (see below), whose sum is σ = 2348886120. Its totient is φ = 389675520.

The previous prime is 1028312297. The next prime is 1028312323. The reversal of 1028312300 is 32138201.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 268709 + ... + 272508.

Almost surely, 2^1028312300 is an apocalyptic number.

1028312300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1028312300 is an abundant number, since it is smaller than the sum of its proper divisors (1320573820).

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

1028312300 is a wasteful number, since it uses less digits than its factorization.

1028312300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541250 (or 541243 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1028312300 is about 32067.3088986276. The cubic root of 1028312300 is about 1009.3497431912.

The spelling of 1028312300 in words is "one billion, twenty-eight million, three hundred twelve thousand, three hundred".