440421002004 has 24 divisors (see below), whose sum is σ = 1028315055040. Its totient is φ = 146711850624.

The previous prime is 440421001967. The next prime is 440421002009. The reversal of 440421002004 is 400200124044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440421002009) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11874469 + ... + 11911500.

Almost surely, 2^440421002004 is an apocalyptic number.

It is an amenable number.

440421002004 is an abundant number, since it is smaller than the sum of its proper divisors (587894053036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

440421002004 is a wasteful number, since it uses less digits than its factorization.

440421002004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23787519 (or 23787517 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 440421002004 its reverse (400200124044), we get a palindrome (840621126048).

The spelling of 440421002004 in words is "four hundred forty billion, four hundred twenty-one million, two thousand, four".