440400000004 has 24 divisors (see below), whose sum is σ = 773303205528. Its totient is φ = 219456906240.

The previous prime is 440399999993. The next prime is 440400000041. The reversal of 440400000004 is 400000004044.

It can be written as a sum of positive squares in 4 ways, for example, as 15400313604 + 424999686400 = 124098^2 + 651920^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2543934 + ... + 2711530.

It is an arithmetic number, because the mean of its divisors is an integer number (32220966897).

Almost surely, 2^440400000004 is an apocalyptic number.

It is an amenable number.

440400000004 is a deficient number, since it is larger than the sum of its proper divisors (332903205524).

440400000004 is a wasteful number, since it uses less digits than its factorization.

440400000004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169815 (or 169813 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 440400000004 its reverse (400000004044), we get a palindrome (840400004048).

The spelling of 440400000004 in words is "four hundred forty billion, four hundred million, four", and thus it is an aban number.