389432466 has 12 divisors (see below), whose sum is σ = 843770382. Its totient is φ = 129810816.

The previous prime is 389432429. The next prime is 389432471. The reversal of 389432466 is 664234983.

It can be written as a sum of positive squares in only one way, i.e., 282744225 + 106688241 = 16815^2 + 10329^2 .

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 5 ways as a sum of consecutive naturals, for example, 10817551 + ... + 10817586.

Almost surely, 2^389432466 is an apocalyptic number.

389432466 is an abundant number, since it is smaller than the sum of its proper divisors (454337916).

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

389432466 is a wasteful number, since it uses less digits than its factorization.

389432466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21635145 (or 21635142 counting only the distinct ones).

The product of its digits is 746496, while the sum is 45.

The square root of 389432466 is about 19734.0433261914. The cubic root of 389432466 is about 730.2597849398.

The spelling of 389432466 in words is "three hundred eighty-nine million, four hundred thirty-two thousand, four hundred sixty-six".