40013324128 has 24 divisors (see below), whose sum is σ = 78800609160. Its totient is φ = 20000471040.

The previous prime is 40013324123. The next prime is 40013324137. The reversal of 40013324128 is 82142331004.

It is a super-2 number, since 2×40013324128² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40013324096 and 40013324105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40013324123) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 87553 + ... + 296128.

It is an arithmetic number, because the mean of its divisors is an integer number (3283358715).

Almost surely, 2^40013324128 is an apocalyptic number.

It is an amenable number.

40013324128 is a deficient number, since it is larger than the sum of its proper divisors (38787285032).

40013324128 is a wasteful number, since it uses less digits than its factorization.

40013324128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386950 (or 386942 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The spelling of 40013324128 in words is "forty billion, thirteen million, three hundred twenty-four thousand, one hundred twenty-eight".