444040440444 has 36 divisors (see below), whose sum is σ = 1122594760560. Its totient is φ = 147992486400.

The previous prime is 444040440421. The next prime is 444040440457. The reversal of 444040440444 is 444044040444.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 444040440399 and 444040440408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 616357 + ... + 1126044.

Almost surely, 2^444040440444 is an apocalyptic number.

It is an amenable number.

444040440444 is an abundant number, since it is smaller than the sum of its proper divisors (678554320116).

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

444040440444 is a wasteful number, since it uses less digits than its factorization.

444040440444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749490 (or 1749485 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 36.

Adding to 444040440444 its reverse (444044040444), we get a palindrome (888084480888).

The spelling of 444040440444 in words is "four hundred forty-four billion, forty million, four hundred forty thousand, four hundred forty-four".