40163212 has 12 divisors (see below), whose sum is σ = 70330680. Its totient is φ = 20068736.

The previous prime is 40163191. The next prime is 40163237. The reversal of 40163212 is 21236104.

40163212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40163212² = 3226167196313888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40163212.

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 3 ways as a sum of consecutive naturals, for example, 8739 + ... + 12517.

It is an arithmetic number, because the mean of its divisors is an integer number (5860890).

Almost surely, 2^40163212 is an apocalyptic number.

It is an amenable number.

40163212 is a deficient number, since it is larger than the sum of its proper divisors (30167468).

40163212 is a wasteful number, since it uses less digits than its factorization.

40163212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6440 (or 6438 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 40163212 is about 6337.4452265878. The cubic root of 40163212 is about 342.4597057752.

Adding to 40163212 its reverse (21236104), we get a palindrome (61399316).

The spelling of 40163212 in words is "forty million, one hundred sixty-three thousand, two hundred twelve".