393085385 has 16 divisors (see below), whose sum is σ = 588097152. Its totient is φ = 245040000.

The previous prime is 393085349. The next prime is 393085391. The reversal of 393085385 is 583580393.

It is not a de Polignac number, because 393085385 - 2²⁴ = 376308169 is a prime.

It is a super-2 number, since 2×393085385² = 309032239801196450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 510116 + ... + 510885.

It is an arithmetic number, because the mean of its divisors is an integer number (36756072).

Almost surely, 2^393085385 is an apocalyptic number.

393085385 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

393085385 is a deficient number, since it is larger than the sum of its proper divisors (195011767).

393085385 is a wasteful number, since it uses less digits than its factorization.

393085385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021024.

The product of its (nonzero) digits is 388800, while the sum is 44.

The square root of 393085385 is about 19826.3810363868. The cubic root of 393085385 is about 732.5359881677.

The spelling of 393085385 in words is "three hundred ninety-three million, eighty-five thousand, three hundred eighty-five".