440212422 has 32 divisors (see below), whose sum is σ = 949455360. Its totient is φ = 135263520.

The previous prime is 440212403. The next prime is 440212429. The reversal of 440212422 is 224212044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440212429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59779 + ... + 66737.

It is an arithmetic number, because the mean of its divisors is an integer number (29670480).

Almost surely, 2^440212422 is an apocalyptic number.

440212422 is an abundant number, since it is smaller than the sum of its proper divisors (509242938).

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

440212422 is a wasteful number, since it uses less digits than its factorization.

440212422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7788.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 440212422 is about 20981.2397631789. The cubic root of 440212422 is about 760.7128710616.

Adding to 440212422 its reverse (224212044), we get a palindrome (664424466).

The spelling of 440212422 in words is "four hundred forty million, two hundred twelve thousand, four hundred twenty-two".