40001368132 has 12 divisors (see below), whose sum is σ = 76366248336. Its totient is φ = 18182440040.

The previous prime is 40001368129. The next prime is 40001368139. The reversal of 40001368132 is 23186310004.

It is a self number, because there is not a number n which added to its sum of digits gives 40001368132.

It is not an unprimeable number, because it can be changed into a prime (40001368139) by changing a digit.

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, 454560958 + ... + 454561045.

It is an arithmetic number, because the mean of its divisors is an integer number (6363854028).

Almost surely, 2^40001368132 is an apocalyptic number.

It is an amenable number.

40001368132 is a deficient number, since it is larger than the sum of its proper divisors (36364880204).

40001368132 is a wasteful number, since it uses less digits than its factorization.

40001368132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909122018 (or 909122016 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 40001368132 its reverse (23186310004), we get a palindrome (63187678136).

The spelling of 40001368132 in words is "forty billion, one million, three hundred sixty-eight thousand, one hundred thirty-two".