389185049 has 8 divisors (see below), whose sum is σ = 428943648. Its totient is φ = 350156160.

The previous prime is 389185039. The next prime is 389185057. The reversal of 389185049 is 940581983.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-389185049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 389184994 and 389185012.

It is not an unprimeable number, because it can be changed into a prime (389185039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181307 + ... + 183440.

It is an arithmetic number, because the mean of its divisors is an integer number (53617956).

Almost surely, 2^389185049 is an apocalyptic number.

It is an amenable number.

389185049 is a deficient number, since it is larger than the sum of its proper divisors (39758599).

389185049 is a wasteful number, since it uses less digits than its factorization.

389185049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364855.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 389185049 is about 19727.7735439152. The cubic root of 389185049 is about 730.1051008993.

The spelling of 389185049 in words is "three hundred eighty-nine million, one hundred eighty-five thousand, forty-nine".