383928108 has 12 divisors (see below), whose sum is σ = 895832280. Its totient is φ = 127976032.

The previous prime is 383928073. The next prime is 383928109. The reversal of 383928108 is 801829383.

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

It is a super-2 number, since 2×383928108² = 294801584224919328, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 383928108.

It is not an unprimeable number, because it can be changed into a prime (383928109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15996993 + ... + 15997016.

It is an arithmetic number, because the mean of its divisors is an integer number (74652690).

Almost surely, 2^383928108 is an apocalyptic number.

It is an amenable number.

383928108 is an abundant number, since it is smaller than the sum of its proper divisors (511904172).

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

383928108 is a wasteful number, since it uses less digits than its factorization.

383928108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31994016 (or 31994014 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 383928108 is about 19594.0834947695. The cubic root of 383928108 is about 726.8028744290.

The spelling of 383928108 in words is "three hundred eighty-three million, nine hundred twenty-eight thousand, one hundred eight".