40208576417 has 4 divisors (see below), whose sum is σ = 40606681236. Its totient is φ = 39810471600.

The previous prime is 40208576399. The next prime is 40208576431. The reversal of 40208576417 is 71467580204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38088986896 + 2119589521 = 195164^2 + 46039^2 .

It is a cyclic number.

It is not a de Polignac number, because 40208576417 - 2²⁴ = 40191799201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40208576497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199052258 + ... + 199052459.

It is an arithmetic number, because the mean of its divisors is an integer number (10151670309).

Almost surely, 2^40208576417 is an apocalyptic number.

It is an amenable number.

40208576417 is a deficient number, since it is larger than the sum of its proper divisors (398104819).

40208576417 is a wasteful number, since it uses less digits than its factorization.

40208576417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398104818.

The product of its (nonzero) digits is 376320, while the sum is 44.

The spelling of 40208576417 in words is "forty billion, two hundred eight million, five hundred seventy-six thousand, four hundred seventeen".