444040420444 has 24 divisors (see below), whose sum is σ = 851152533840. Its totient is φ = 201754672896.

The previous prime is 444040420363. The next prime is 444040420469. The reversal of 444040420444 is 444024040444.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

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, 112584342 + ... + 112588285.

It is an arithmetic number, because the mean of its divisors is an integer number (35464688910).

Almost surely, 2^444040420444 is an apocalyptic number.

It is an amenable number.

444040420444 is a deficient number, since it is larger than the sum of its proper divisors (407112113396).

444040420444 is a wasteful number, since it uses less digits than its factorization.

444040420444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225172677 (or 225172675 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 34.

Adding to 444040420444 its reverse (444024040444), we get a palindrome (888064460888).

The spelling of 444040420444 in words is "four hundred forty-four billion, forty million, four hundred twenty thousand, four hundred forty-four".