384940 has 24 divisors (see below), whose sum is σ = 851760. Its totient is φ = 145728.

The previous prime is 384919. The next prime is 384941. The reversal of 384940 is 49483.

It is a junction number, because it is equal to n+sod(n) for n = 384899 and 384908.

It is not an unprimeable number, because it can be changed into a prime (384941) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 127 + ... + 886.

It is an arithmetic number, because the mean of its divisors is an integer number (35490).

2³⁸⁴⁹⁴⁰ is an apocalyptic number.

It is an amenable number.

384940 is an abundant number, since it is smaller than the sum of its proper divisors (466820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

384940 is a wasteful number, since it uses less digits than its factorization.

384940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041 (or 1039 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 384940 is about 620.4353310378. The cubic root of 384940 is about 72.7440841818.

The spelling of 384940 in words is "three hundred eighty-four thousand, nine hundred forty".