1443994 has 4 divisors (see below), whose sum is σ = 2165994. Its totient is φ = 721996.

The previous prime is 1443989. The next prime is 1444007. The reversal of 1443994 is 4993441.

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

It can be written as a sum of positive squares in only one way, i.e., 1155625 + 288369 = 1075^2 + 537^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360997 + ... + 361000.

2^1443994 is an apocalyptic number.

1443994 is a deficient number, since it is larger than the sum of its proper divisors (722000).

1443994 is an equidigital number, since it uses as much as digits as its factorization.

1443994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721999.

The product of its digits is 15552, while the sum is 34.

The square root of 1443994 is about 1201.6630143264. The cubic root of 1443994 is about 113.0286298094.

The spelling of 1443994 in words is "one million, four hundred forty-three thousand, nine hundred ninety-four".