4001344003 has 4 divisors (see below), whose sum is σ = 4130419648. Its totient is φ = 3872268360.

The previous prime is 4001343989. The next prime is 4001344033. The reversal of 4001344003 is 3004431004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4001344003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4001344033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64537776 + ... + 64537837.

It is an arithmetic number, because the mean of its divisors is an integer number (1032604912).

Almost surely, 2^4001344003 is an apocalyptic number.

4001344003 is a deficient number, since it is larger than the sum of its proper divisors (129075645).

4001344003 is a wasteful number, since it uses less digits than its factorization.

4001344003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129075644.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 4001344003 is about 63256.1775876475. The cubic root of 4001344003 is about 1587.5788213741.

Adding to 4001344003 its reverse (3004431004), we get a palindrome (7005775007).

The spelling of 4001344003 in words is "four billion, one million, three hundred forty-four thousand, three".