400444044404 has 6 divisors (see below), whose sum is σ = 700777077714. Its totient is φ = 200222022200.

The previous prime is 400444044401. The next prime is 400444044499. The reversal of 400444044404 is 404440444004.

It can be written as a sum of positive squares in only one way, i.e., 379838016100 + 20606028304 = 616310^2 + 143548^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400444044401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50055505547 + ... + 50055505554.

It is an arithmetic number, because the mean of its divisors is an integer number (116796179619).

Almost surely, 2^400444044404 is an apocalyptic number.

It is an amenable number.

400444044404 is a deficient number, since it is larger than the sum of its proper divisors (300333033310).

400444044404 is a wasteful number, since it uses less digits than its factorization.

400444044404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100111011105 (or 100111011103 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 400444044404 its reverse (404440444004), we get a palindrome (804884488408).

The spelling of 400444044404 in words is "four hundred billion, four hundred forty-four million, forty-four thousand, four hundred four".