385338313 has 4 divisors (see below), whose sum is σ = 395752900. Its totient is φ = 374923728.

The previous prime is 385338293. The next prime is 385338329. The reversal of 385338313 is 313833583.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 369869824 + 15468489 = 19232^2 + 3933^2 .

It is a cyclic number.

It is not a de Polignac number, because 385338313 - 2¹⁷ = 385207241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 10414549 = 385338313 / (3 + 8 + 5 + 3 + 3 + 8 + 3 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385338013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5207238 + ... + 5207311.

It is an arithmetic number, because the mean of its divisors is an integer number (98938225).

Almost surely, 2^385338313 is an apocalyptic number.

It is an amenable number.

385338313 is a deficient number, since it is larger than the sum of its proper divisors (10414587).

385338313 is a wasteful number, since it uses less digits than its factorization.

385338313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10414586.

The product of its digits is 77760, while the sum is 37.

The square root of 385338313 is about 19630.0359907974. The cubic root of 385338313 is about 727.6916594891.

The spelling of 385338313 in words is "three hundred eighty-five million, three hundred thirty-eight thousand, three hundred thirteen".