40042444002004 has 12 divisors (see below), whose sum is σ = 70768081727028. Its totient is φ = 19822992080000.

The previous prime is 40042444001999. The next prime is 40042444002053. The reversal of 40042444002004 is 40020044424004.

It can be written as a sum of positive squares in 2 ways, for example, as 39635234105104 + 407209896900 = 6295652^2 + 638130^2 .

It is a super-2 number, since 2×40042444002004² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49557479797 + ... + 49557480604.

It is an arithmetic number, because the mean of its divisors is an integer number (5897340143919).

Almost surely, 2^{40042444002004} is an apocalyptic number.

It is an amenable number.

40042444002004 is a deficient number, since it is larger than the sum of its proper divisors (30725637725024).

40042444002004 is a wasteful number, since it uses less digits than its factorization.

40042444002004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99114960506 (or 99114960504 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 40042444002004 its reverse (40020044424004), we get a palindrome (80062488426008).

The spelling of 40042444002004 in words is "forty trillion, forty-two billion, four hundred forty-four million, two thousand, four".