383842 has 16 divisors (see below), whose sum is σ = 612864. Its totient is φ = 180000.

The previous prime is 383839. The next prime is 383869. The reversal of 383842 is 248383.

It is a self number, because there is not a number n which added to its sum of digits gives 383842.

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 7 ways as a sum of consecutive naturals, for example, 2467 + ... + 2617.

It is an arithmetic number, because the mean of its divisors is an integer number (38304).

2³⁸³⁸⁴² is an apocalyptic number.

383842 is a deficient number, since it is larger than the sum of its proper divisors (229022).

383842 is a wasteful number, since it uses less digits than its factorization.

383842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225.

The product of its digits is 4608, while the sum is 28.

The square root of 383842 is about 619.5498365749. The cubic root of 383842 is about 72.6748534202.

It can be divided in two parts, 383 and 842, that added together give a triangular number (1225 = T₄₉).

The spelling of 383842 in words is "three hundred eighty-three thousand, eight hundred forty-two".