40012132344 has 32 divisors (see below), whose sum is σ = 104379477120. Its totient is φ = 12757491296.

The previous prime is 40012132339. The next prime is 40012132351. The reversal of 40012132344 is 44323121004.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36242322 + ... + 36243425.

It is an arithmetic number, because the mean of its divisors is an integer number (3261858660).

Almost surely, 2^40012132344 is an apocalyptic number.

It is an amenable number.

40012132344 is an abundant number, since it is smaller than the sum of its proper divisors (64367344776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40012132344 is a wasteful number, since it uses less digits than its factorization.

40012132344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72485779 (or 72485775 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 40012132344 its reverse (44323121004), we get a palindrome (84335253348).

The spelling of 40012132344 in words is "forty billion, twelve million, one hundred thirty-two thousand, three hundred forty-four".