40642402372 has 36 divisors (see below), whose sum is σ = 84017633616. Its totient is φ = 17052753120.

The previous prime is 40642402369. The next prime is 40642402373. The reversal of 40642402372 is 27320424604.

40642402372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40642402373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2725378 + ... + 2740249.

It is an arithmetic number, because the mean of its divisors is an integer number (2333823156).

Almost surely, 2^40642402372 is an apocalyptic number.

It is an amenable number.

40642402372 is an abundant number, since it is smaller than the sum of its proper divisors (43375231244).

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

40642402372 is a wasteful number, since it uses less digits than its factorization.

40642402372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5465668 (or 5465653 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 34.

Adding to 40642402372 its reverse (27320424604), we get a palindrome (67962826976).

The spelling of 40642402372 in words is "forty billion, six hundred forty-two million, four hundred two thousand, three hundred seventy-two".