40131542220 has 192 divisors, whose sum is σ = 140250700800. Its totient is φ = 8329789440.

The previous prime is 40131542173. The next prime is 40131542221. The reversal of 40131542220 is 2224513104.

It is a super-2 number, since 2×40131542220² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40131542221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4657276 + ... + 4665884.

It is an arithmetic number, because the mean of its divisors is an integer number (730472400).

Almost surely, 2^40131542220 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 40131542220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70125350400).

40131542220 is an abundant number, since it is smaller than the sum of its proper divisors (100119158580).

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

40131542220 is a wasteful number, since it uses less digits than its factorization.

40131542220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9648 (or 9646 counting only the distinct ones).

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

The spelling of 40131542220 in words is "forty billion, one hundred thirty-one million, five hundred forty-two thousand, two hundred twenty".