40040340212 has 24 divisors (see below), whose sum is σ = 71304643872. Its totient is φ = 19670612000.

The previous prime is 40040340167. The next prime is 40040340233. The reversal of 40040340212 is 21204304004.

40040340212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325358 + ... + 431205.

It is an arithmetic number, because the mean of its divisors is an integer number (2971026828).

Almost surely, 2^40040340212 is an apocalyptic number.

It is an amenable number.

40040340212 is a deficient number, since it is larger than the sum of its proper divisors (31264303660).

40040340212 is a wasteful number, since it uses less digits than its factorization.

40040340212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756799 (or 756797 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 40040340212 its reverse (21204304004), we get a palindrome (61244644216).

The spelling of 40040340212 in words is "forty billion, forty million, three hundred forty thousand, two hundred twelve".