1995443 has 8 divisors (see below), whose sum is σ = 2134512. Its totient is φ = 1858816.

The previous prime is 1995431. The next prime is 1995449. The reversal of 1995443 is 3445991.

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

It is a cyclic number.

It is not a de Polignac number, because 1995443 - 2⁸ = 1995187 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1995449) 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, 1271 + ... + 2367.

It is an arithmetic number, because the mean of its divisors is an integer number (266814).

2^1995443 is an apocalyptic number.

1995443 is a deficient number, since it is larger than the sum of its proper divisors (139069).

1995443 is a wasteful number, since it uses less digits than its factorization.

1995443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221.

The product of its digits is 19440, while the sum is 35.

The square root of 1995443 is about 1412.6015007779. The cubic root of 1995443 is about 125.8963412163.

It can be divided in two parts, 1995 and 443, that multiplied together give a triangular number (883785 = T₁₃₂₉).

The spelling of 1995443 in words is "one million, nine hundred ninety-five thousand, four hundred forty-three".