1994449 has 4 divisors (see below), whose sum is σ = 2099440. Its totient is φ = 1889460.

The previous prime is 1994441. The next prime is 1994459. The reversal of 1994449 is 9444991.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9444991 = 1031 ⋅9161.

It is a cyclic number.

It is not a de Polignac number, because 1994449 - 2³ = 1994441 is a prime.

It is a Duffinian number.

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 in 3 ways as a sum of consecutive naturals, for example, 52467 + ... + 52504.

It is an arithmetic number, because the mean of its divisors is an integer number (524860).

2^1994449 is an apocalyptic number.

1994449 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1994449 is a deficient number, since it is larger than the sum of its proper divisors (104991).

1994449 is a wasteful number, since it uses less digits than its factorization.

1994449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104990.

The product of its digits is 46656, while the sum is 40.

The square root of 1994449 is about 1412.2496238272. The cubic root of 1994449 is about 125.8754332862.

The spelling of 1994449 in words is "one million, nine hundred ninety-four thousand, four hundred forty-nine".