385534665 has 48 divisors (see below), whose sum is σ = 679590912. Its totient is φ = 202165632.

The previous prime is 385534663. The next prime is 385534679. The reversal of 385534665 is 566435583.

385534665 is a `hidden beast` number, since 38 + 553 + 4 + 6 + 65 = 666.

It is not a de Polignac number, because 385534665 - 2¹ = 385534663 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 385534665.

It is not an unprimeable number, because it can be changed into a prime (385534663) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1033419 + ... + 1033791.

It is an arithmetic number, because the mean of its divisors is an integer number (14158144).

Almost surely, 2^385534665 is an apocalyptic number.

It is an amenable number.

385534665 is a deficient number, since it is larger than the sum of its proper divisors (294056247).

385534665 is a wasteful number, since it uses less digits than its factorization.

385534665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710 (or 707 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 45.

The square root of 385534665 is about 19635.0366691789. The cubic root of 385534665 is about 727.8152387315.

The spelling of 385534665 in words is "three hundred eighty-five million, five hundred thirty-four thousand, six hundred sixty-five".