349057385 has 4 divisors (see below), whose sum is σ = 418868868. Its totient is φ = 279245904.

The previous prime is 349057367. The next prime is 349057399. The reversal of 349057385 is 583750943.

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 142157929 + 206899456 = 11923^2 + 14384^2 .

It is a cyclic number.

It is not a de Polignac number, because 349057385 - 2⁸ = 349057129 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34905734 + ... + 34905743.

It is an arithmetic number, because the mean of its divisors is an integer number (104717217).

Almost surely, 2^349057385 is an apocalyptic number.

It is an amenable number.

349057385 is a deficient number, since it is larger than the sum of its proper divisors (69811483).

349057385 is an equidigital number, since it uses as much as digits as its factorization.

349057385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69811482.

The product of its (nonzero) digits is 453600, while the sum is 44.

The square root of 349057385 is about 18683.0775034522. The cubic root of 349057385 is about 704.0966482594.

The spelling of 349057385 in words is "three hundred forty-nine million, fifty-seven thousand, three hundred eighty-five".