40204140432 has 40 divisors (see below), whose sum is σ = 103872964800. Its totient is φ = 13399797120.

The previous prime is 40204140373. The next prime is 40204140439. The reversal of 40204140432 is 23404140204.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (40204140439) 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 7 ways as a sum of consecutive naturals, for example, 403957 + ... + 493547.

It is an arithmetic number, because the mean of its divisors is an integer number (2596824120).

Almost surely, 2^40204140432 is an apocalyptic number.

It is an amenable number.

40204140432 is an abundant number, since it is smaller than the sum of its proper divisors (63668824368).

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

40204140432 is a wasteful number, since it uses less digits than its factorization.

40204140432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98951 (or 98945 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 40204140432 its reverse (23404140204), we get a palindrome (63608280636).

The spelling of 40204140432 in words is "forty billion, two hundred four million, one hundred forty thousand, four hundred thirty-two".