2039443 has 4 divisors (see below), whose sum is σ = 2330800. Its totient is φ = 1748088.

The previous prime is 2039437. The next prime is 2039461. The reversal of 2039443 is 3449302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3449302 = 2 ⋅1724651.

It is a cyclic number.

It is not a de Polignac number, because 2039443 - 2¹³ = 2031251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2039423) 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, 145668 + ... + 145681.

It is an arithmetic number, because the mean of its divisors is an integer number (582700).

2^2039443 is an apocalyptic number.

2039443 is a deficient number, since it is larger than the sum of its proper divisors (291357).

2039443 is an equidigital number, since it uses as much as digits as its factorization.

2039443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291356.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 2039443 is about 1428.0906833951. The cubic root of 2039443 is about 126.8149701863.

The spelling of 2039443 in words is "two million, thirty-nine thousand, four hundred forty-three".