1009442 has 8 divisors (see below), whose sum is σ = 1730496. Its totient is φ = 432612.

The previous prime is 1009439. The next prime is 1009457. The reversal of 1009442 is 2449001.

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, 36038 + ... + 36065.

It is an arithmetic number, because the mean of its divisors is an integer number (216312).

2^1009442 is an apocalyptic number.

1009442 is a deficient number, since it is larger than the sum of its proper divisors (721054).

1009442 is an equidigital number, since it uses as much as digits as its factorization.

1009442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72112.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1009442 is about 1004.7099083815. The cubic root of 1009442 is about 100.3137479262.

The spelling of 1009442 in words is "one million, nine thousand, four hundred forty-two".