440212 has 12 divisors (see below), whose sum is σ = 776160. Its totient is φ = 218456.

The previous prime is 440207. The next prime is 440221. The reversal of 440212 is 212044.

It is a junction number, because it is equal to n+sod(n) for n = 440192 and 440201.

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, 339 + ... + 997.

It is an arithmetic number, because the mean of its divisors is an integer number (64680).

2⁴⁴⁰²¹² is an apocalyptic number.

It is an amenable number.

440212 is a deficient number, since it is larger than the sum of its proper divisors (335948).

440212 is a wasteful number, since it uses less digits than its factorization.

440212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 440212 is about 663.4847398396. The cubic root of 440212 is about 76.0712627981.

Adding to 440212 its reverse (212044), we get a palindrome (652256).

The spelling of 440212 in words is "four hundred forty thousand, two hundred twelve", and thus it is an iban number.