389543748 has 24 divisors (see below), whose sum is σ = 991566240. Its totient is φ = 118043520.

The previous prime is 389543731. The next prime is 389543753. The reversal of 389543748 is 847345983.

It is a super-3 number, since 3×389543748³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 389543748.

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, 1475413 + ... + 1475676.

It is an arithmetic number, because the mean of its divisors is an integer number (41315260).

Almost surely, 2^389543748 is an apocalyptic number.

It is an amenable number.

389543748 is an abundant number, since it is smaller than the sum of its proper divisors (602022492).

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

389543748 is a wasteful number, since it uses less digits than its factorization.

389543748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951107 (or 2951105 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 51.

The square root of 389543748 is about 19736.8626686209. The cubic root of 389543748 is about 730.3293366055.

The spelling of 389543748 in words is "three hundred eighty-nine million, five hundred forty-three thousand, seven hundred forty-eight".