440345144 has 16 divisors (see below), whose sum is σ = 825874920. Its totient is φ = 220111840.

The previous prime is 440345141. The next prime is 440345149. The reversal of 440345144 is 441543044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440345141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43247 + ... + 52449.

Almost surely, 2^440345144 is an apocalyptic number.

It is an amenable number.

440345144 is a deficient number, since it is larger than the sum of its proper divisors (385529776).

440345144 is a wasteful number, since it uses less digits than its factorization.

440345144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15190 (or 15186 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 440345144 is about 20984.4023979717. The cubic root of 440345144 is about 760.7893138452.

Adding to 440345144 its reverse (441543044), we get a palindrome (881888188).

The spelling of 440345144 in words is "four hundred forty million, three hundred forty-five thousand, one hundred forty-four".