1003144403444 has 24 divisors (see below), whose sum is σ = 1786675514400. Its totient is φ = 492679195040.

The previous prime is 1003144403441. The next prime is 1003144403453. The reversal of 1003144403444 is 4443044413001.

It is a super-2 number, since 2×1003144403444² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1003144403444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003144403441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1390967 + ... + 1985214.

It is an arithmetic number, because the mean of its divisors is an integer number (74444813100).

Almost surely, 2^{1003144403444} is an apocalyptic number.

It is an amenable number.

1003144403444 is a deficient number, since it is larger than the sum of its proper divisors (783531110956).

1003144403444 is a wasteful number, since it uses less digits than its factorization.

1003144403444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3377503 (or 3377501 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 1003144403444 its reverse (4443044413001), we get a palindrome (5446188816445).

The spelling of 1003144403444 in words is "one trillion, three billion, one hundred forty-four million, four hundred three thousand, four hundred forty-four".