440440212 has 12 divisors (see below), whose sum is σ = 1027693856. Its totient is φ = 146813400.

The previous prime is 440440183. The next prime is 440440223. The reversal of 440440212 is 212044044.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18351664 + ... + 18351687.

Almost surely, 2^440440212 is an apocalyptic number.

It is an amenable number.

440440212 is an abundant number, since it is smaller than the sum of its proper divisors (587253644).

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

440440212 is a wasteful number, since it uses less digits than its factorization.

440440212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36703358 (or 36703356 counting only the distinct ones).

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

The square root of 440440212 is about 20986.6674819991. The cubic root of 440440212 is about 760.8440599272.

Adding to 440440212 its reverse (212044044), we get a palindrome (652484256).

The spelling of 440440212 in words is "four hundred forty million, four hundred forty thousand, two hundred twelve".