389105032 has 16 divisors (see below), whose sum is σ = 734221260. Its totient is φ = 193312704.

The previous prime is 389105029. The next prime is 389105033. The reversal of 389105032 is 230501983.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 306040036 + 83064996 = 17494^2 + 9114^2 .

It is a junction number, because it is equal to n+sod(n) for n = 389104985 and 389105003.

It is not an unprimeable number, because it can be changed into a prime (389105033) 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, 153643 + ... + 156154.

Almost surely, 2^389105032 is an apocalyptic number.

It is an amenable number.

389105032 is a deficient number, since it is larger than the sum of its proper divisors (345116228).

389105032 is a wasteful number, since it uses less digits than its factorization.

389105032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309960 (or 309956 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 389105032 is about 19725.7454105035. The cubic root of 389105032 is about 730.0550605870.

The spelling of 389105032 in words is "three hundred eighty-nine million, one hundred five thousand, thirty-two".