4042440066004 has 12 divisors (see below), whose sum is σ = 7082886771828. Its totient is φ = 2018758131200.

The previous prime is 4042440066001. The next prime is 4042440066031. The reversal of 4042440066004 is 4006600442404.

It can be written as a sum of positive squares in 2 ways, for example, as 354703624900 + 3687736441104 = 595570^2 + 1920348^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4042440066001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 615471757 + ... + 615478324.

It is an arithmetic number, because the mean of its divisors is an integer number (590240564319).

Almost surely, 2^{4042440066004} is an apocalyptic number.

It is an amenable number.

4042440066004 is a deficient number, since it is larger than the sum of its proper divisors (3040446705824).

4042440066004 is a wasteful number, since it uses less digits than its factorization.

4042440066004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230950906 (or 1230950904 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

The spelling of 4042440066004 in words is "four trillion, forty-two billion, four hundred forty million, sixty-six thousand, four".