8517240394 has 32 divisors (see below), whose sum is σ = 14223908160. Its totient is φ = 3799982592.

The previous prime is 8517240383. The next prime is 8517240427. The reversal of 8517240394 is 4930427158.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 8517240394.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 69177 + ... + 147715.

It is an arithmetic number, because the mean of its divisors is an integer number (444497130).

Almost surely, 2^8517240394 is an apocalyptic number.

8517240394 is a deficient number, since it is larger than the sum of its proper divisors (5706667766).

8517240394 is a wasteful number, since it uses less digits than its factorization.

8517240394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78694.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 8517240394 is about 92288.8963743743. The cubic root of 8517240394 is about 2042.2064101623.

The spelling of 8517240394 in words is "eight billion, five hundred seventeen million, two hundred forty thousand, three hundred ninety-four".