389242 has 8 divisors (see below), whose sum is σ = 667296. Its totient is φ = 166812.

The previous prime is 389231. The next prime is 389269. The reversal of 389242 is 242983.

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 389242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13888 + ... + 13915.

It is an arithmetic number, because the mean of its divisors is an integer number (83412).

2³⁸⁹²⁴² is an apocalyptic number.

389242 is a deficient number, since it is larger than the sum of its proper divisors (278054).

389242 is a wasteful number, since it uses less digits than its factorization.

389242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27812.

The product of its digits is 3456, while the sum is 28.

The square root of 389242 is about 623.8926189658. The cubic root of 389242 is about 73.0140712226.

The spelling of 389242 in words is "three hundred eighty-nine thousand, two hundred forty-two".