389883280 has 40 divisors (see below), whose sum is σ = 935725824. Its totient is φ = 150921600.

The previous prime is 389883259. The next prime is 389883323. The reversal of 389883280 is 82388983.

It is a tau number, because it is divible by the number of its divisors (40).

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, 76126 + ... + 81085.

Almost surely, 2^389883280 is an apocalyptic number.

It is an amenable number.

389883280 is an abundant number, since it is smaller than the sum of its proper divisors (545842544).

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

389883280 is a wasteful number, since it uses less digits than its factorization.

389883280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157255 (or 157249 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 49.

The square root of 389883280 is about 19745.4622635177. The cubic root of 389883280 is about 730.5414635460.

It can be divided in two parts, 3898 and 83280, that added together give a palindrome (87178).

The spelling of 389883280 in words is "three hundred eighty-nine million, eight hundred eighty-three thousand, two hundred eighty".