1001404013444 has 48 divisors (see below), whose sum is σ = 1800862156800. Its totient is φ = 487039827456.

The previous prime is 1001404013431. The next prime is 1001404013483. The reversal of 1001404013444 is 4443104041001.

It is a super-2 number, since 2×1001404013444² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 40077347 + ... + 40102325.

It is an arithmetic number, because the mean of its divisors is an integer number (37517961600).

Almost surely, 2^{1001404013444} is an apocalyptic number.

It is an amenable number.

1001404013444 is a deficient number, since it is larger than the sum of its proper divisors (799458143356).

1001404013444 is a wasteful number, since it uses less digits than its factorization.

1001404013444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26652 (or 26650 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 1001404013444 its reverse (4443104041001), we get a palindrome (5444508054445).

The spelling of 1001404013444 in words is "one trillion, one billion, four hundred four million, thirteen thousand, four hundred forty-four".