385937215 has 16 divisors (see below), whose sum is σ = 488361600. Its totient is φ = 291982752.

The previous prime is 385937173. The next prime is 385937297. The reversal of 385937215 is 512739583.

It is a cyclic number.

It is not a de Polignac number, because 385937215 - 2¹⁹ = 385412927 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 15 ways as a sum of consecutive naturals, for example, 55524 + ... + 62086.

It is an arithmetic number, because the mean of its divisors is an integer number (30522600).

Almost surely, 2^385937215 is an apocalyptic number.

385937215 is a deficient number, since it is larger than the sum of its proper divisors (102424385).

385937215 is a wasteful number, since it uses less digits than its factorization.

385937215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7206.

The product of its digits is 226800, while the sum is 43.

The square root of 385937215 is about 19645.2848032295. The cubic root of 385937215 is about 728.0684629240.

The spelling of 385937215 in words is "three hundred eighty-five million, nine hundred thirty-seven thousand, two hundred fifteen".