400440044404 has 12 divisors (see below), whose sum is σ = 702163262304. Its totient is φ = 199821969464.

The previous prime is 400440044369. The next prime is 400440044437. The reversal of 400440044404 is 404440044004.

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, 99510922 + ... + 99514945.

It is an arithmetic number, because the mean of its divisors is an integer number (58513605192).

Almost surely, 2^400440044404 is an apocalyptic number.

It is an amenable number.

400440044404 is a deficient number, since it is larger than the sum of its proper divisors (301723217900).

400440044404 is a wasteful number, since it uses less digits than its factorization.

400440044404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199026374 (or 199026372 counting only the distinct ones).

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

Adding to 400440044404 its reverse (404440044004), we get a palindrome (804880088408).

The spelling of 400440044404 in words is "four hundred billion, four hundred forty million, forty-four thousand, four hundred four".