40338792722 has 6 divisors (see below), whose sum is σ = 60508615143. Its totient is φ = 20169254342.

The previous prime is 40338792661. The next prime is 40338792757. The reversal of 40338792722 is 22729783304.

It can be written as a sum of positive squares in only one way, i.e., 20169396361 + 20169396361 = 142019^2 + 142019^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=142019.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 213029 + ... + 355047.

Almost surely, 2^40338792722 is an apocalyptic number.

40338792722 is a deficient number, since it is larger than the sum of its proper divisors (20169822421).

40338792722 is an frugal number, since it uses more digits than its factorization.

40338792722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284040 (or 142021 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 47.

The spelling of 40338792722 in words is "forty billion, three hundred thirty-eight million, seven hundred ninety-two thousand, seven hundred twenty-two".