4001303444 has 6 divisors (see below), whose sum is σ = 7002281034. Its totient is φ = 2000651720.

The previous prime is 4001303419. The next prime is 4001303459. The reversal of 4001303444 is 4443031004.

It can be written as a sum of positive squares in only one way, i.e., 3936307600 + 64995844 = 62740^2 + 8062^2 .

It is a super-2 number, since 2×4001303444² = 32020858501932522272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 500162927 + ... + 500162934.

It is an arithmetic number, because the mean of its divisors is an integer number (1167046839).

Almost surely, 2^4001303444 is an apocalyptic number.

It is an amenable number.

4001303444 is a deficient number, since it is larger than the sum of its proper divisors (3000977590).

4001303444 is a wasteful number, since it uses less digits than its factorization.

4001303444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000325865 (or 1000325863 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 4001303444 is about 63255.8569936413. The cubic root of 4001303444 is about 1587.5734572742.

Adding to 4001303444 its reverse (4443031004), we get a palindrome (8444334448).

The spelling of 4001303444 in words is "four billion, one million, three hundred three thousand, four hundred forty-four".