385304 has 8 divisors (see below), whose sum is σ = 722460. Its totient is φ = 192648.

The previous prime is 385291. The next prime is 385321. The reversal of 385304 is 403583.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 385304.

It is a congruent number.

It is an unprimeable number.

385304 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24074 + ... + 24089.

2³⁸⁵³⁰⁴ is an apocalyptic number.

It is an amenable number.

385304 is a deficient number, since it is larger than the sum of its proper divisors (337156).

385304 is a wasteful number, since it uses less digits than its factorization.

385304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48169 (or 48165 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 385304 is about 620.7286041419. The cubic root of 385304 is about 72.7670059400.

Adding to 385304 its reverse (403583), we get a palindrome (788887).

The spelling of 385304 in words is "three hundred eighty-five thousand, three hundred four".