768928428 has 54 divisors (see below), whose sum is σ = 2064767796. Its totient is φ = 241229184.

The previous prime is 768928361. The next prime is 768928439. The reversal of 768928428 is 824829867.

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 17 ways as a sum of consecutive naturals, for example, 26550 + ... + 47357.

Almost surely, 2^768928428 is an apocalyptic number.

It is an amenable number.

768928428 is an abundant number, since it is smaller than the sum of its proper divisors (1295839368).

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

768928428 is a wasteful number, since it uses less digits than its factorization.

768928428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73951 (or 73929 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 768928428 is about 27729.5587415307. The cubic root of 768928428 is about 916.1402679241.

The spelling of 768928428 in words is "seven hundred sixty-eight million, nine hundred twenty-eight thousand, four hundred twenty-eight".