1994444 has 6 divisors (see below), whose sum is σ = 3490284. Its totient is φ = 997220.

The previous prime is 1994441. The next prime is 1994459. The reversal of 1994444 is 4444991.

It is not an unprimeable number, because it can be changed into a prime (1994441) 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 as a sum of consecutive naturals, namely, 249302 + ... + 249309.

It is an arithmetic number, because the mean of its divisors is an integer number (581714).

2^1994444 is an apocalyptic number.

It is an amenable number.

1994444 is a deficient number, since it is larger than the sum of its proper divisors (1495840).

1994444 is a wasteful number, since it uses less digits than its factorization.

1994444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498615 (or 498613 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 1994444 is about 1412.2478536008. The cubic root of 1994444 is about 125.8753280980.

The spelling of 1994444 in words is "one million, nine hundred ninety-four thousand, four hundred forty-four".