40122742132 has 48 divisors (see below), whose sum is σ = 78847175232. Its totient is φ = 17704327680.

The previous prime is 40122742123. The next prime is 40122742139. The reversal of 40122742132 is 23124722104.

It is a self number, because there is not a number n which added to its sum of digits gives 40122742132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40122742139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 693388 + ... + 749020.

It is an arithmetic number, because the mean of its divisors is an integer number (1642649484).

Almost surely, 2^40122742132 is an apocalyptic number.

It is an amenable number.

40122742132 is a deficient number, since it is larger than the sum of its proper divisors (38724433100).

40122742132 is a wasteful number, since it uses less digits than its factorization.

40122742132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56128 (or 56126 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The spelling of 40122742132 in words is "forty billion, one hundred twenty-two million, seven hundred forty-two thousand, one hundred thirty-two".