440022044 has 48 divisors (see below), whose sum is σ = 961658880. Its totient is φ = 171149760.

The previous prime is 440021957. The next prime is 440022047. The reversal of 440022044 is 440220044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440022047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343397 + ... + 344675.

It is an arithmetic number, because the mean of its divisors is an integer number (20034560).

Almost surely, 2^440022044 is an apocalyptic number.

440022044 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

440022044 is an abundant number, since it is smaller than the sum of its proper divisors (521636836).

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

440022044 is a wasteful number, since it uses less digits than its factorization.

440022044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2418 (or 2416 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 440022044 is about 20976.7024100548. The cubic root of 440022044 is about 760.6031938014.

Adding to 440022044 its reverse (440220044), we get a palindrome (880242088).

The spelling of 440022044 in words is "four hundred forty million, twenty-two thousand, forty-four".