345346 has 4 divisors (see below), whose sum is σ = 518022. Its totient is φ = 172672.

The previous prime is 345329. The next prime is 345379. The reversal of 345346 is 643543.

345346 is nontrivially palindromic in base 14.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 643543 = 157 ⋅4099.

It can be written as a sum of positive squares in only one way, i.e., 314721 + 30625 = 561^2 + 175^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 345346.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86335 + ... + 86338.

2³⁴⁵³⁴⁶ is an apocalyptic number.

345346 is a deficient number, since it is larger than the sum of its proper divisors (172676).

345346 is a wasteful number, since it uses less digits than its factorization.

345346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172675.

The product of its digits is 4320, while the sum is 25.

The square root of 345346 is about 587.6614671731. The cubic root of 345346 is about 70.1592293622.

Adding to 345346 its reverse (643543), we get a palindrome (988889).

The spelling of 345346 in words is "three hundred forty-five thousand, three hundred forty-six".