440312422 has 24 divisors (see below), whose sum is σ = 760442472. Its totient is φ = 189604800.

The previous prime is 440312417. The next prime is 440312443. The reversal of 440312422 is 224213044.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 440312393 and 440312402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19779 + ... + 35662.

It is an arithmetic number, because the mean of its divisors is an integer number (31685103).

Almost surely, 2^440312422 is an apocalyptic number.

440312422 is a deficient number, since it is larger than the sum of its proper divisors (320130050).

440312422 is a wasteful number, since it uses less digits than its factorization.

440312422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55492 (or 55473 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 440312422 is about 20983.6227091511. The cubic root of 440312422 is about 760.7704686545.

Adding to 440312422 its reverse (224213044), we get a palindrome (664525466).

The spelling of 440312422 in words is "four hundred forty million, three hundred twelve thousand, four hundred twenty-two".