320341385 has 32 divisors (see below), whose sum is σ = 481178880. Its totient is φ = 199312128.

The previous prime is 320341379. The next prime is 320341391. The reversal of 320341385 is 583143023.

It is an interprime number because it is at equal distance from previous prime (320341379) and next prime (320341391).

It is a cyclic number.

It is not a de Polignac number, because 320341385 - 2⁴ = 320341369 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20879 + ... + 32811.

It is an arithmetic number, because the mean of its divisors is an integer number (15036840).

Almost surely, 2^320341385 is an apocalyptic number.

320341385 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

320341385 is a deficient number, since it is larger than the sum of its proper divisors (160837495).

320341385 is a wasteful number, since it uses less digits than its factorization.

320341385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12017.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 320341385 is about 17898.0832772674. The cubic root of 320341385 is about 684.2335256169.

The spelling of 320341385 in words is "three hundred twenty million, three hundred forty-one thousand, three hundred eighty-five".