385345 has 4 divisors (see below), whose sum is σ = 462420. Its totient is φ = 308272.

The previous prime is 385331. The next prime is 385351. The reversal of 385345 is 543583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543583 = 109 ⋅4987.

It can be written as a sum of positive squares in 2 ways, for example, as 262144 + 123201 = 512^2 + 351^2 .

It is a cyclic number.

It is not a de Polignac number, because 385345 - 2¹¹ = 383297 is a prime.

385345 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38530 + ... + 38539.

It is an arithmetic number, because the mean of its divisors is an integer number (115605).

2³⁸⁵³⁴⁵ is an apocalyptic number.

It is an amenable number.

385345 is a deficient number, since it is larger than the sum of its proper divisors (77075).

385345 is an equidigital number, since it uses as much as digits as its factorization.

385345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77074.

The product of its digits is 7200, while the sum is 28.

The square root of 385345 is about 620.7616289688. The cubic root of 385345 is about 72.7695868817.

The spelling of 385345 in words is "three hundred eighty-five thousand, three hundred forty-five".