3994449 has 8 divisors (see below), whose sum is σ = 5379072. Its totient is φ = 2636400.

The previous prime is 3994429. The next prime is 3994453. The reversal of 3994449 is 9444993.

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

It is not a de Polignac number, because 3994449 - 2¹² = 3990353 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3994449.

It is not an unprimeable number, because it can be changed into a prime (3994429) 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 7 ways as a sum of consecutive naturals, for example, 6289 + ... + 6894.

It is an arithmetic number, because the mean of its divisors is an integer number (672384).

Almost surely, 2^3994449 is an apocalyptic number.

It is an amenable number.

3994449 is a deficient number, since it is larger than the sum of its proper divisors (1384623).

3994449 is a wasteful number, since it uses less digits than its factorization.

3994449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13287.

The product of its digits is 139968, while the sum is 42.

The square root of 3994449 is about 1998.6117682031. The cubic root of 3994449 is about 158.6666406759. Note that the first 4 decimals are identical.

It can be divided in two parts, 39944 and 49, that added together give a palindrome (39993).

The spelling of 3994449 in words is "three million, nine hundred ninety-four thousand, four hundred forty-nine".