440622444 has 12 divisors (see below), whose sum is σ = 1028119064. Its totient is φ = 146874144.

The previous prime is 440622401. The next prime is 440622451. The reversal of 440622444 is 444226044.

It is a tau number, because it is divible by the number of its divisors (12).

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, 18359257 + ... + 18359280.

Almost surely, 2^440622444 is an apocalyptic number.

It is an amenable number.

440622444 is an abundant number, since it is smaller than the sum of its proper divisors (587496620).

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

440622444 is a wasteful number, since it uses less digits than its factorization.

440622444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36718544 (or 36718542 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

The square root of 440622444 is about 20991.0086465610. The cubic root of 440622444 is about 760.9489784559.

Adding to 440622444 its reverse (444226044), we get a palindrome (884848488).

The spelling of 440622444 in words is "four hundred forty million, six hundred twenty-two thousand, four hundred forty-four".