387836928 has 66 divisors (see below), whose sum is σ = 1119897324. Its totient is φ = 129275904.

The previous prime is 387836887. The next prime is 387836947. The reversal of 387836928 is 829638783.

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 5 ways as a sum of consecutive naturals, for example, 11826 + ... + 30257.

Almost surely, 2^387836928 is an apocalyptic number.

It is an amenable number.

387836928 is an abundant number, since it is smaller than the sum of its proper divisors (732060396).

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

387836928 is a wasteful number, since it uses less digits than its factorization.

387836928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42109 (or 42088 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 387836928 is about 19693.5758053229. The cubic root of 387836928 is about 729.2611076166.

The spelling of 387836928 in words is "three hundred eighty-seven million, eight hundred thirty-six thousand, nine hundred twenty-eight".