387830028 has 12 divisors (see below), whose sum is σ = 904936760. Its totient is φ = 129276672.

The previous prime is 387830017. The next prime is 387830059. The reversal of 387830028 is 820038783.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16159573 + ... + 16159596.

Almost surely, 2^387830028 is an apocalyptic number.

It is an amenable number.

387830028 is an abundant number, since it is smaller than the sum of its proper divisors (517106732).

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

387830028 is a wasteful number, since it uses less digits than its factorization.

387830028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32319176 (or 32319174 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 387830028 is about 19693.4006205124. The cubic root of 387830028 is about 729.2567828338.

The spelling of 387830028 in words is "three hundred eighty-seven million, eight hundred thirty thousand, twenty-eight".