1028934648 has 48 divisors (see below), whose sum is σ = 3184799280. Its totient is φ = 293981184.

The previous prime is 1028934629. The next prime is 1028934661. The reversal of 1028934648 is 8464398201.

It is a happy number.

1028934648 is a `hidden beast` number, since 102 + 89 + 3 + 464 + 8 = 666.

It is a congruent number.

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, 1020265 + ... + 1021272.

It is an arithmetic number, because the mean of its divisors is an integer number (66349985).

Almost surely, 2^1028934648 is an apocalyptic number.

1028934648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1028934648 is an abundant number, since it is smaller than the sum of its proper divisors (2155864632).

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

1028934648 is a wasteful number, since it uses less digits than its factorization.

1028934648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041556 (or 2041549 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 1028934648 is about 32077.0112074052. The cubic root of 1028934648 is about 1009.5533259976.

The spelling of 1028934648 in words is "one billion, twenty-eight million, nine hundred thirty-four thousand, six hundred forty-eight".