8386040385 has 48 divisors (see below), whose sum is σ = 14890569408. Its totient is φ = 4363632000.

The previous prime is 8386040359. The next prime is 8386040389. The reversal of 8386040385 is 5830406838.

8386040385 is a `hidden beast` number, since 8 + 3 + 8 + 604 + 0 + 38 + 5 = 666.

It is not a de Polignac number, because 8386040385 - 2⁵ = 8386040353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8386040385.

It is not an unprimeable number, because it can be changed into a prime (8386040389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2264035 + ... + 2267735.

It is an arithmetic number, because the mean of its divisors is an integer number (310220196).

Almost surely, 2^8386040385 is an apocalyptic number.

It is an amenable number.

8386040385 is a deficient number, since it is larger than the sum of its proper divisors (6504529023).

8386040385 is a wasteful number, since it uses less digits than its factorization.

8386040385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4926 (or 4923 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The square root of 8386040385 is about 91575.3262893450. The cubic root of 8386040385 is about 2031.6660176888. Note that the first 3 decimals are identical.

The spelling of 8386040385 in words is "eight billion, three hundred eighty-six million, forty thousand, three hundred eighty-five".