387842 has 16 divisors (see below), whose sum is σ = 716352. Its totient is φ = 153360.

The previous prime is 387839. The next prime is 387853. The reversal of 387842 is 248783.

It is a junction number, because it is equal to n+sod(n) for n = 387799 and 387808.

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, 884 + ... + 1247.

It is an arithmetic number, because the mean of its divisors is an integer number (44772).

2³⁸⁷⁸⁴² is an apocalyptic number.

387842 is a deficient number, since it is larger than the sum of its proper divisors (328510).

387842 is a wasteful number, since it uses less digits than its factorization.

387842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153.

The product of its digits is 10752, while the sum is 32.

The square root of 387842 is about 622.7696203252. The cubic root of 387842 is about 72.9264286613.

The spelling of 387842 in words is "three hundred eighty-seven thousand, eight hundred forty-two".