389642 has 16 divisors (see below), whose sum is σ = 648000. Its totient is φ = 174240.

The previous prime is 389629. The next prime is 389651. The reversal of 389642 is 246983.

It is a junction number, because it is equal to n+sod(n) for n = 389599 and 389608.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 389642.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1859 + ... + 2057.

It is an arithmetic number, because the mean of its divisors is an integer number (40500).

2³⁸⁹⁶⁴² is an apocalyptic number.

389642 is a deficient number, since it is larger than the sum of its proper divisors (258358).

389642 is a wasteful number, since it uses less digits than its factorization.

389642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301.

The product of its digits is 10368, while the sum is 32.

The square root of 389642 is about 624.2131046365. The cubic root of 389642 is about 73.0390733463.

The spelling of 389642 in words is "three hundred eighty-nine thousand, six hundred forty-two".