389242473 has 8 divisors (see below), whose sum is σ = 524340768. Its totient is φ = 256819584.

The previous prime is 389242453. The next prime is 389242499. The reversal of 389242473 is 374242983.

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

It is not a de Polignac number, because 389242473 - 2¹³ = 389234281 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (389242433) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 668511 + ... + 669092.

It is an arithmetic number, because the mean of its divisors is an integer number (65542596).

Almost surely, 2^389242473 is an apocalyptic number.

It is an amenable number.

389242473 is a deficient number, since it is larger than the sum of its proper divisors (135098295).

389242473 is a wasteful number, since it uses less digits than its factorization.

389242473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337703.

The product of its digits is 290304, while the sum is 42.

The square root of 389242473 is about 19729.2289002890. The cubic root of 389242473 is about 730.1410079770.

The spelling of 389242473 in words is "three hundred eighty-nine million, two hundred forty-two thousand, four hundred seventy-three".