1009042 has 4 divisors (see below), whose sum is σ = 1513566. Its totient is φ = 504520.

The previous prime is 1009037. The next prime is 1009049. The reversal of 1009042 is 2409001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 848241 + 160801 = 921^2 + 401^2 .

It is not an unprimeable number, because it can be changed into a prime (1009049) by changing a digit.

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 as a sum of consecutive naturals, namely, 252259 + ... + 252262.

2^1009042 is an apocalyptic number.

1009042 is a deficient number, since it is larger than the sum of its proper divisors (504524).

1009042 is an equidigital number, since it uses as much as digits as its factorization.

1009042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504523.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1009042 is about 1004.5108262234. The cubic root of 1009042 is about 100.3004961164.

The spelling of 1009042 in words is "one million, nine thousand, forty-two".