40405112132 has 96 divisors (see below), whose sum is σ = 89106441984. Its totient is φ = 15573196800.

The previous prime is 40405112129. The next prime is 40405112159. The reversal of 40405112132 is 23121150404.

It is a junction number, because it is equal to n+sod(n) for n = 40405112098 and 40405112107.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29687132 + ... + 29688492.

It is an arithmetic number, because the mean of its divisors is an integer number (928192104).

Almost surely, 2^40405112132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40405112132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44553220992).

40405112132 is an abundant number, since it is smaller than the sum of its proper divisors (48701329852).

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

40405112132 is a wasteful number, since it uses less digits than its factorization.

40405112132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2349 (or 2347 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 40405112132 its reverse (23121150404), we get a palindrome (63526262536).

The spelling of 40405112132 in words is "forty billion, four hundred five million, one hundred twelve thousand, one hundred thirty-two".