349575385 has 8 divisors (see below), whose sum is σ = 421006536. Its totient is φ = 278649600.

The previous prime is 349575379. The next prime is 349575397. The reversal of 349575385 is 583575943.

It can be written as a sum of positive squares in 4 ways, for example, as 62916624 + 286658761 = 7932^2 + 16931^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 349575385 - 2³ = 349575377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124816 + ... + 127585.

It is an arithmetic number, because the mean of its divisors is an integer number (52625817).

Almost surely, 2^349575385 is an apocalyptic number.

It is an amenable number.

349575385 is a deficient number, since it is larger than the sum of its proper divisors (71431151).

349575385 is a wasteful number, since it uses less digits than its factorization.

349575385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252683.

The product of its digits is 2268000, while the sum is 49.

The square root of 349575385 is about 18696.9351766540. The cubic root of 349575385 is about 704.4447684755. Note that the first 3 decimals are identical.

The spelling of 349575385 in words is "three hundred forty-nine million, five hundred seventy-five thousand, three hundred eighty-five".