40320413212 has 48 divisors (see below), whose sum is σ = 74521036800. Its totient is φ = 19050785600.

The previous prime is 40320413173. The next prime is 40320413219. The reversal of 40320413212 is 21231402304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40320413219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4446339 + ... + 4455397.

It is an arithmetic number, because the mean of its divisors is an integer number (1552521600).

Almost surely, 2^40320413212 is an apocalyptic number.

It is an amenable number.

40320413212 is a deficient number, since it is larger than the sum of its proper divisors (34200623588).

40320413212 is a wasteful number, since it uses less digits than its factorization.

40320413212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9666 (or 9664 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 40320413212 its reverse (21231402304), we get a palindrome (61551815516).

The spelling of 40320413212 in words is "forty billion, three hundred twenty million, four hundred thirteen thousand, two hundred twelve".