4344143021 has 4 divisors (see below), whose sum is σ = 4358293632. Its totient is φ = 4329992412.

The previous prime is 4344143003. The next prime is 4344143029. The reversal of 4344143021 is 1203414434.

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 a de Polignac number, because none of the positive numbers 2^k-4344143021 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 (4344143029) 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, 7074845 + ... + 7075458.

It is an arithmetic number, because the mean of its divisors is an integer number (1089573408).

Almost surely, 2^4344143021 is an apocalyptic number.

It is an amenable number.

4344143021 is a deficient number, since it is larger than the sum of its proper divisors (14150611).

4344143021 is a wasteful number, since it uses less digits than its factorization.

4344143021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14150610.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 4344143021 is about 65910.1131921346. The cubic root of 4344143021 is about 1631.6789281164.

Adding to 4344143021 its reverse (1203414434), we get a palindrome (5547557455).

The spelling of 4344143021 in words is "four billion, three hundred forty-four million, one hundred forty-three thousand, twenty-one".