40308522172 has 12 divisors (see below), whose sum is σ = 70663889520. Its totient is φ = 20118839456.

The previous prime is 40308522151. The next prime is 40308522187. The reversal of 40308522172 is 27122580304.

It is a happy number.

40308522172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8852848 + ... + 8857399.

It is an arithmetic number, because the mean of its divisors is an integer number (5888657460).

Almost surely, 2^40308522172 is an apocalyptic number.

It is an amenable number.

40308522172 is a deficient number, since it is larger than the sum of its proper divisors (30355367348).

40308522172 is a wasteful number, since it uses less digits than its factorization.

40308522172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17710820 (or 17710818 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The spelling of 40308522172 in words is "forty billion, three hundred eight million, five hundred twenty-two thousand, one hundred seventy-two".