39408960193 has 8 divisors (see below), whose sum is σ = 41778727560. Its totient is φ = 37044925440.

The previous prime is 39408960131. The next prime is 39408960247. The reversal of 39408960193 is 39106980493.

It can be written as a sum of positive squares in 4 ways, for example, as 22431651984 + 16977308209 = 149772^2 + 130297^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39408960193 is a prime.

It is a super-2 number, since 2×39408960193² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 39408960193.

It is not an unprimeable number, because it can be changed into a prime (39408960103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1418988 + ... + 1446493.

It is an arithmetic number, because the mean of its divisors is an integer number (5222340945).

Almost surely, 2^39408960193 is an apocalyptic number.

It is an amenable number.

39408960193 is a deficient number, since it is larger than the sum of its proper divisors (2369767367).

39408960193 is a wasteful number, since it uses less digits than its factorization.

39408960193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2866307.

The product of its (nonzero) digits is 1259712, while the sum is 52.

The spelling of 39408960193 in words is "thirty-nine billion, four hundred eight million, nine hundred sixty thousand, one hundred ninety-three".