440242422 has 8 divisors (see below), whose sum is σ = 880484856. Its totient is φ = 146747472.

The previous prime is 440242349. The next prime is 440242423. The reversal of 440242422 is 224242044.

It is a sphenic number, since it is the product of 3 distinct primes.

440242422 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 440242392 and 440242401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440242423) 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, 36686863 + ... + 36686874.

It is an arithmetic number, because the mean of its divisors is an integer number (110060607).

Almost surely, 2^440242422 is an apocalyptic number.

440242422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

440242422 is a wasteful number, since it uses less digits than its factorization.

440242422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73373742.

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 440242422 is about 20981.9546753871. The cubic root of 440242422 is about 760.7301512553.

Adding to 440242422 its reverse (224242044), we get a palindrome (664484466).

The spelling of 440242422 in words is "four hundred forty million, two hundred forty-two thousand, four hundred twenty-two".