2009446 has 4 divisors (see below), whose sum is σ = 3014172. Its totient is φ = 1004722.

The previous prime is 2009437. The next prime is 2009461. The reversal of 2009446 is 6449002.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2009446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502360 + ... + 502363.

It is an arithmetic number, because the mean of its divisors is an integer number (753543).

2^2009446 is an apocalyptic number.

2009446 is a deficient number, since it is larger than the sum of its proper divisors (1004726).

2009446 is a wasteful number, since it uses less digits than its factorization.

2009446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004725.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2009446 is about 1417.5492936755. The cubic root of 2009446 is about 126.1901471023.

The spelling of 2009446 in words is "two million, nine thousand, four hundred forty-six".