40840260172 has 48 divisors (see below), whose sum is σ = 72905978880. Its totient is φ = 20013840000.

The previous prime is 40840260161. The next prime is 40840260173. The reversal of 40840260172 is 27106204804.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40840260173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54380797 + ... + 54381547.

It is an arithmetic number, because the mean of its divisors is an integer number (1518874560).

Almost surely, 2^40840260172 is an apocalyptic number.

It is an amenable number.

40840260172 is a deficient number, since it is larger than the sum of its proper divisors (32065718708).

40840260172 is a wasteful number, since it uses less digits than its factorization.

40840260172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702 (or 1700 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

Adding to 40840260172 its reverse (27106204804), we get a palindrome (67946464976).

The spelling of 40840260172 in words is "forty billion, eight hundred forty million, two hundred sixty thousand, one hundred seventy-two".