385023565 has 32 divisors (see below), whose sum is σ = 527026176. Its totient is φ = 268308480.

The previous prime is 385023559. The next prime is 385023589. The reversal of 385023565 is 565320583.

It is not a de Polignac number, because 385023565 - 2¹⁵ = 384990797 is a prime.

It is a Duffinian number.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 57429 + ... + 63781.

It is an arithmetic number, because the mean of its divisors is an integer number (16469568).

Almost surely, 2^385023565 is an apocalyptic number.

It is an amenable number.

385023565 is a deficient number, since it is larger than the sum of its proper divisors (142002611).

385023565 is a wasteful number, since it uses less digits than its factorization.

385023565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6429.

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 385023565 is about 19622.0173529635. The cubic root of 385023565 is about 727.4934770300.

The spelling of 385023565 in words is "three hundred eighty-five million, twenty-three thousand, five hundred sixty-five".