1005384 has 32 divisors (see below), whose sum is σ = 2538720. Its totient is φ = 331776.

The previous prime is 1005373. The next prime is 1005391. The reversal of 1005384 is 4835001.

It is a self number, because there is not a number n which added to its sum of digits gives 1005384.

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, 3784 + ... + 4040.

It is an arithmetic number, because the mean of its divisors is an integer number (79335).

2^1005384 is an apocalyptic number.

It is an amenable number.

1005384 is an abundant number, since it is smaller than the sum of its proper divisors (1533336).

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

1005384 is a wasteful number, since it uses less digits than its factorization.

1005384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1005384 is about 1002.6883862896. The cubic root of 1005384 is about 100.1791455438.

The spelling of 1005384 in words is "one million, five thousand, three hundred eighty-four".