349306 has 4 divisors (see below), whose sum is σ = 523962. Its totient is φ = 174652.

The previous prime is 349303. The next prime is 349313. The reversal of 349306 is 603943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 603943 = 173 ⋅3491.

It can be written as a sum of positive squares in only one way, i.e., 349281 + 25 = 591^2 + 5^2 .

It is not an unprimeable number, because it can be changed into a prime (349303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87325 + ... + 87328.

2³⁴⁹³⁰⁶ is an apocalyptic number.

349306 is a deficient number, since it is larger than the sum of its proper divisors (174656).

349306 is a wasteful number, since it uses less digits than its factorization.

349306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174655.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 349306 is about 591.0211502138. The cubic root of 349306 is about 70.4263772112.

Subtracting from 349306 its sum of digits (25), we obtain a square (349281 = 591²).

The spelling of 349306 in words is "three hundred forty-nine thousand, three hundred six".