2002144423 has 4 divisors (see below), whose sum is σ = 2002259800. Its totient is φ = 2002029048.

The previous prime is 2002144381. The next prime is 2002144429. The reversal of 2002144423 is 3244412002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2002144423 is a prime.

It is a super-4 number, since 4×2002144423⁴ (a number of 38 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002144394 and 2002144403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002144429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25773 + ... + 68326.

It is an arithmetic number, because the mean of its divisors is an integer number (500564950).

Almost surely, 2^2002144423 is an apocalyptic number.

2002144423 is a deficient number, since it is larger than the sum of its proper divisors (115377).

2002144423 is an equidigital number, since it uses as much as digits as its factorization.

2002144423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115376.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2002144423 is about 44745.3285047724. The cubic root of 2002144423 is about 1260.3711896644.

Adding to 2002144423 its reverse (3244412002), we get a palindrome (5246556425).

The spelling of 2002144423 in words is "two billion, two million, one hundred forty-four thousand, four hundred twenty-three".