1005442 has 8 divisors (see below), whose sum is σ = 1587600. Its totient is φ = 476244.

The previous prime is 1005439. The next prime is 1005457. The reversal of 1005442 is 2445001.

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

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 3 ways as a sum of consecutive naturals, for example, 13192 + ... + 13267.

It is an arithmetic number, because the mean of its divisors is an integer number (198450).

2^1005442 is an apocalyptic number.

1005442 is a deficient number, since it is larger than the sum of its proper divisors (582158).

1005442 is a wasteful number, since it uses less digits than its factorization.

1005442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26480.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 1005442 is about 1002.7173081183. The cubic root of 1005442 is about 100.1810719317.

The spelling of 1005442 in words is "one million, five thousand, four hundred forty-two".