385652815 has 8 divisors (see below), whose sum is σ = 465369840. Its totient is φ = 306797952.

The previous prime is 385652809. The next prime is 385652821. The reversal of 385652815 is 518256583.

It is an interprime number because it is at equal distance from previous prime (385652809) and next prime (385652821).

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

It is a cyclic number.

It is not a de Polignac number, because 385652815 - 2³ = 385652807 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 214554 + ... + 216343.

It is an arithmetic number, because the mean of its divisors is an integer number (58171230).

Almost surely, 2^385652815 is an apocalyptic number.

385652815 is a deficient number, since it is larger than the sum of its proper divisors (79717025).

385652815 is a wasteful number, since it uses less digits than its factorization.

385652815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431081.

The product of its digits is 288000, while the sum is 43.

The square root of 385652815 is about 19638.0450910980. The cubic root of 385652815 is about 727.8895792907.

The spelling of 385652815 in words is "three hundred eighty-five million, six hundred fifty-two thousand, eight hundred fifteen".