383869980 has 108 divisors (see below), whose sum is σ = 1260965160. Its totient is φ = 94483584.

The previous prime is 383869963. The next prime is 383870017. The reversal of 383869980 is 89968383.

It is a congruent number.

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 35 ways as a sum of consecutive naturals, for example, 24111 + ... + 36729.

Almost surely, 2^383869980 is an apocalyptic number.

383869980 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 383869980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (630482580).

383869980 is an abundant number, since it is smaller than the sum of its proper divisors (877095180).

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

383869980 is a wasteful number, since it uses less digits than its factorization.

383869980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12660 (or 12642 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 383869980 is about 19592.6001337240. The cubic root of 383869980 is about 726.7661924488.

The spelling of 383869980 in words is "three hundred eighty-three million, eight hundred sixty-nine thousand, nine hundred eighty".