389542 has 4 divisors (see below), whose sum is σ = 584316. Its totient is φ = 194770.

The previous prime is 389539. The next prime is 389561. The reversal of 389542 is 245983.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 97384 + ... + 97387.

It is an arithmetic number, because the mean of its divisors is an integer number (146079).

2³⁸⁹⁵⁴² is an apocalyptic number.

389542 is a deficient number, since it is larger than the sum of its proper divisors (194774).

389542 is a wasteful number, since it uses less digits than its factorization.

389542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194773.

The product of its digits is 8640, while the sum is 31.

The square root of 389542 is about 624.1329986469. The cubic root of 389542 is about 73.0328244201.

The spelling of 389542 in words is "three hundred eighty-nine thousand, five hundred forty-two".