389132090 has 8 divisors (see below), whose sum is σ = 700437780. Its totient is φ = 155652832.

The previous prime is 389132083. The next prime is 389132113. The reversal of 389132090 is 90231983.

It can be written as a sum of positive squares in 2 ways, for example, as 328588129 + 60543961 = 18127^2 + 7781^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 389132090.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19456595 + ... + 19456614.

Almost surely, 2^389132090 is an apocalyptic number.

389132090 is a deficient number, since it is larger than the sum of its proper divisors (311305690).

389132090 is a wasteful number, since it uses less digits than its factorization.

389132090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38913216.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 389132090 is about 19726.4312535238. The cubic root of 389132090 is about 730.0719826435.

The spelling of 389132090 in words is "three hundred eighty-nine million, one hundred thirty-two thousand, ninety".