40434440212 has 12 divisors (see below), whose sum is σ = 70824430656. Its totient is φ = 20198888600.

The previous prime is 40434440173. The next prime is 40434440257. The reversal of 40434440212 is 21204443404.

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 3 ways as a sum of consecutive naturals, for example, 4577914 + ... + 4586737.

It is an arithmetic number, because the mean of its divisors is an integer number (5902035888).

Almost surely, 2^40434440212 is an apocalyptic number.

It is an amenable number.

40434440212 is a deficient number, since it is larger than the sum of its proper divisors (30389990444).

40434440212 is a wasteful number, since it uses less digits than its factorization.

40434440212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9165758 (or 9165756 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 40434440212 its reverse (21204443404), we get a palindrome (61638883616).

The spelling of 40434440212 in words is "forty billion, four hundred thirty-four million, four hundred forty thousand, two hundred twelve".