440441212 has 12 divisors (see below), whose sum is σ = 797350680. Its totient is φ = 212626736.

The previous prime is 440441143. The next prime is 440441213. The reversal of 440441212 is 212144044.

It is a super-2 number, since 2×440441212² = 387976922456057888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440441213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1898338 + ... + 1898569.

It is an arithmetic number, because the mean of its divisors is an integer number (66445890).

Almost surely, 2^440441212 is an apocalyptic number.

It is an amenable number.

440441212 is a deficient number, since it is larger than the sum of its proper divisors (356909468).

440441212 is a wasteful number, since it uses less digits than its factorization.

440441212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3796940 (or 3796938 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 440441212 is about 20986.6913066353. The cubic root of 440441212 is about 760.8446357477.

Adding to 440441212 its reverse (212144044), we get a palindrome (652585256).

The spelling of 440441212 in words is "four hundred forty million, four hundred forty-one thousand, two hundred twelve".