349057 has 4 divisors (see below), whose sum is σ = 352260. Its totient is φ = 345856.

The previous prime is 349051. The next prime is 349079. The reversal of 349057 is 750943.

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 147456 + 201601 = 384^2 + 449^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-349057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1432 + ... + 1657.

It is an arithmetic number, because the mean of its divisors is an integer number (88065).

2³⁴⁹⁰⁵⁷ is an apocalyptic number.

It is an amenable number.

349057 is a deficient number, since it is larger than the sum of its proper divisors (3203).

349057 is a wasteful number, since it uses less digits than its factorization.

349057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3202.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 349057 is about 590.8104603001. The cubic root of 349057 is about 70.4096389393.

The spelling of 349057 in words is "three hundred forty-nine thousand, fifty-seven".