2042443 has 8 divisors (see below), whose sum is σ = 2315600. Its totient is φ = 1785888.

The previous prime is 2042429. The next prime is 2042449. The reversal of 2042443 is 3442402.

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

It is a de Polignac number, because none of the positive numbers 2^k-2042443 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2042443.

It is not an unprimeable number, because it can be changed into a prime (2042449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3888 + ... + 4381.

It is an arithmetic number, because the mean of its divisors is an integer number (289450).

2^2042443 is an apocalyptic number.

2042443 is a deficient number, since it is larger than the sum of its proper divisors (273157).

2042443 is a wasteful number, since it uses less digits than its factorization.

2042443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8301.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 2042443 is about 1429.1406508808. The cubic root of 2042443 is about 126.8771209009.

Adding to 2042443 its reverse (3442402), we get a palindrome (5484845).

It can be divided in two parts, 2042 and 443, that added together give a triangular number (2485 = T₇₀).

The spelling of 2042443 in words is "two million, forty-two thousand, four hundred forty-three".