440501212 has 24 divisors (see below), whose sum is σ = 836136000. Its totient is φ = 202237440.

The previous prime is 440501209. The next prime is 440501231. The reversal of 440501212 is 212105044.

It is a self number, because there is not a number n which added to its sum of digits gives 440501212.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 76212 + ... + 81787.

It is an arithmetic number, because the mean of its divisors is an integer number (34839000).

Almost surely, 2^440501212 is an apocalyptic number.

It is an amenable number.

440501212 is a deficient number, since it is larger than the sum of its proper divisors (395634788).

440501212 is a wasteful number, since it uses less digits than its factorization.

440501212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158061 (or 158059 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 440501212 is about 20988.1207353112. The cubic root of 440501212 is about 760.8791833817.

Adding to 440501212 its reverse (212105044), we get a palindrome (652606256).

The spelling of 440501212 in words is "four hundred forty million, five hundred one thousand, two hundred twelve".