40040451132 has 144 divisors (see below), whose sum is σ = 104314758912. Its totient is φ = 11853803520.

The previous prime is 40040451127. The next prime is 40040451151. The reversal of 40040451132 is 23115404004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 127924608 + ... + 127924920.

It is an arithmetic number, because the mean of its divisors is an integer number (724408048).

Almost surely, 2^40040451132 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 40040451132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52157379456).

40040451132 is an abundant number, since it is smaller than the sum of its proper divisors (64274307780).

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

40040451132 is a wasteful number, since it uses less digits than its factorization.

40040451132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 40040451132 its reverse (23115404004), we get a palindrome (63155855136).

The spelling of 40040451132 in words is "forty billion, forty million, four hundred fifty-one thousand, one hundred thirty-two".