385333665 has 16 divisors (see below), whose sum is σ = 618523776. Its totient is φ = 204848000.

The previous prime is 385333657. The next prime is 385333667. The reversal of 385333665 is 566333583.

It is not a de Polignac number, because 385333665 - 2³ = 385333657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (385333667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36636 + ... + 45965.

It is an arithmetic number, because the mean of its divisors is an integer number (38657736).

Almost surely, 2^385333665 is an apocalyptic number.

It is an amenable number.

385333665 is a deficient number, since it is larger than the sum of its proper divisors (233190111).

385333665 is a wasteful number, since it uses less digits than its factorization.

385333665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82920.

The product of its digits is 583200, while the sum is 42.

The square root of 385333665 is about 19629.9176004384. The cubic root of 385333665 is about 727.6887336407.

The spelling of 385333665 in words is "three hundred eighty-five million, three hundred thirty-three thousand, six hundred sixty-five".