40280240660 has 24 divisors (see below), whose sum is σ = 92278370016. Its totient is φ = 14647360160.

The previous prime is 40280240647. The next prime is 40280240701. The reversal of 40280240660 is 6604208204.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91545782 + ... + 91546221.

It is an arithmetic number, because the mean of its divisors is an integer number (3844932084).

Almost surely, 2^40280240660 is an apocalyptic number.

It is an amenable number.

40280240660 is an abundant number, since it is smaller than the sum of its proper divisors (51998129356).

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

40280240660 is a wasteful number, since it uses less digits than its factorization.

40280240660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183092023 (or 183092021 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 40280240660 its reverse (6604208204), we get a palindrome (46884448864).

The spelling of 40280240660 in words is "forty billion, two hundred eighty million, two hundred forty thousand, six hundred sixty".