385539 has 16 divisors (see below), whose sum is σ = 641280. Its totient is φ = 200160.

The previous prime is 385537. The next prime is 385559. The reversal of 385539 is 935583.

385539 = T₃₄ + T₃₅ + ... + T₁₃₂.

It is not a de Polignac number, because 385539 - 2¹ = 385537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (385531) 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, 604 + ... + 1065.

It is an arithmetic number, because the mean of its divisors is an integer number (40080).

2³⁸⁵⁵³⁹ is an apocalyptic number.

385539 is a deficient number, since it is larger than the sum of its proper divisors (255741).

385539 is a wasteful number, since it uses less digits than its factorization.

385539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690.

The product of its digits is 16200, while the sum is 33.

The square root of 385539 is about 620.9178689650. The cubic root of 385539 is about 72.7817966603.

The spelling of 385539 in words is "three hundred eighty-five thousand, five hundred thirty-nine".