440423425144 has 32 divisors (see below), whose sum is σ = 840173616000. Its totient is φ = 216380534112.

The previous prime is 440423425109. The next prime is 440423425163. The reversal of 440423425144 is 441524324044.

It is a happy number.

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, 828037 + ... + 1251595.

It is an arithmetic number, because the mean of its divisors is an integer number (26255425500).

Almost surely, 2^440423425144 is an apocalyptic number.

It is an amenable number.

440423425144 is a deficient number, since it is larger than the sum of its proper divisors (399750190856).

440423425144 is a wasteful number, since it uses less digits than its factorization.

440423425144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425827 (or 425823 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 37.

Adding to 440423425144 its reverse (441524324044), we get a palindrome (881947749188).

The spelling of 440423425144 in words is "four hundred forty billion, four hundred twenty-three million, four hundred twenty-five thousand, one hundred forty-four".