1047842 has 8 divisors (see below), whose sum is σ = 1593516. Its totient is φ = 516672.

The previous prime is 1047841. The next prime is 1047859. The reversal of 1047842 is 2487401.

It can be written as a sum of positive squares in 2 ways, for example, as 958441 + 89401 = 979^2 + 299^2 .

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

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1047841) 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 3 ways as a sum of consecutive naturals, for example, 3443 + ... + 3734.

2^1047842 is an apocalyptic number.

1047842 is a deficient number, since it is larger than the sum of its proper divisors (545674).

1047842 is an equidigital number, since it uses as much as digits as its factorization.

1047842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7252.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 1047842 is about 1023.6415388211. The cubic root of 1047842 is about 101.5699567070.

The spelling of 1047842 in words is "one million, forty-seven thousand, eight hundred forty-two".