385407686 has 8 divisors (see below), whose sum is σ = 596760384. Its totient is φ = 186487560.

The previous prime is 385407643. The next prime is 385407707. The reversal of 385407686 is 686704583.

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

It is a self number, because there is not a number n which added to its sum of digits gives 385407686.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3108065 + ... + 3108188.

It is an arithmetic number, because the mean of its divisors is an integer number (74595048).

Almost surely, 2^385407686 is an apocalyptic number.

385407686 is a deficient number, since it is larger than the sum of its proper divisors (211352698).

385407686 is a wasteful number, since it uses less digits than its factorization.

385407686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6216286.

The product of its (nonzero) digits is 967680, while the sum is 47.

The square root of 385407686 is about 19631.8029228087. The cubic root of 385407686 is about 727.7353259874.

The spelling of 385407686 in words is "three hundred eighty-five million, four hundred seven thousand, six hundred eighty-six".