39440071316 has 6 divisors (see below), whose sum is σ = 69020124810. Its totient is φ = 19720035656.

The previous prime is 39440071271. The next prime is 39440071379. The reversal of 39440071316 is 61317004493.

It can be written as a sum of positive squares in only one way, i.e., 34746451216 + 4693620100 = 186404^2 + 68510^2 .

It is a super-2 number, since 2×39440071316² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 39440071316.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4930008911 + ... + 4930008918.

It is an arithmetic number, because the mean of its divisors is an integer number (11503354135).

Almost surely, 2^39440071316 is an apocalyptic number.

It is an amenable number.

39440071316 is a deficient number, since it is larger than the sum of its proper divisors (29580053494).

39440071316 is a wasteful number, since it uses less digits than its factorization.

39440071316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9860017833 (or 9860017831 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The spelling of 39440071316 in words is "thirty-nine billion, four hundred forty million, seventy-one thousand, three hundred sixteen".