2042144421 has 4 divisors (see below), whose sum is σ = 2722859232. Its totient is φ = 1361429612.

The previous prime is 2042144381. The next prime is 2042144473. The reversal of 2042144421 is 1244412402.

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.

It is a cyclic number.

It is not a de Polignac number, because 2042144421 - 2¹¹ = 2042142373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2042144391 and 2042144400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042144921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340357401 + ... + 340357406.

It is an arithmetic number, because the mean of its divisors is an integer number (680714808).

Almost surely, 2^2042144421 is an apocalyptic number.

It is an amenable number.

2042144421 is a deficient number, since it is larger than the sum of its proper divisors (680714811).

2042144421 is an equidigital number, since it uses as much as digits as its factorization.

2042144421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680714810.

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 2042144421 is about 45190.0920667352. The cubic root of 2042144421 is about 1268.7093799641.

Adding to 2042144421 its reverse (1244412402), we get a palindrome (3286556823).

The spelling of 2042144421 in words is "two billion, forty-two million, one hundred forty-four thousand, four hundred twenty-one".