384742 has 8 divisors (see below), whose sum is σ = 589536. Its totient is φ = 188232.

The previous prime is 384737. The next prime is 384751. The reversal of 384742 is 247483.

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

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 384742.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1953 + ... + 2140.

It is an arithmetic number, because the mean of its divisors is an integer number (73692).

384742 is a Friedman number, since it can be written as 47*(8^4-3)*2, using all its digits and the basic arithmetic operations.

2³⁸⁴⁷⁴² is an apocalyptic number.

384742 is a deficient number, since it is larger than the sum of its proper divisors (204794).

384742 is a wasteful number, since it uses less digits than its factorization.

384742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4142.

The product of its digits is 5376, while the sum is 28.

The square root of 384742 is about 620.2757451328. The cubic root of 384742 is about 72.7316096846.

The spelling of 384742 in words is "three hundred eighty-four thousand, seven hundred forty-two".