3857428328 has 32 divisors (see below), whose sum is σ = 7792092000. Its totient is φ = 1779653568.

The previous prime is 3857428313. The next prime is 3857428339. The reversal of 3857428328 is 8238247583.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337475 + ... + 348717.

It is an arithmetic number, because the mean of its divisors is an integer number (243502875).

Almost surely, 2^3857428328 is an apocalyptic number.

It is an amenable number.

3857428328 is an abundant number, since it is smaller than the sum of its proper divisors (3934663672).

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

3857428328 is a wasteful number, since it uses less digits than its factorization.

3857428328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14561 (or 14557 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 50.

The square root of 3857428328 is about 62108.1985570343. The cubic root of 3857428328 is about 1568.3125645896.

The spelling of 3857428328 in words is "three billion, eight hundred fifty-seven million, four hundred twenty-eight thousand, three hundred twenty-eight".