345356 has 24 divisors (see below), whose sum is σ = 677376. Its totient is φ = 152720.

The previous prime is 345329. The next prime is 345379. The reversal of 345356 is 653543.

It is a congruent number.

It is an unprimeable number.

345356 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1985 + ... + 2151.

It is an arithmetic number, because the mean of its divisors is an integer number (28224).

2³⁴⁵³⁵⁶ is an apocalyptic number.

It is an amenable number.

345356 is a deficient number, since it is larger than the sum of its proper divisors (332020).

345356 is a wasteful number, since it uses less digits than its factorization.

345356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 227 counting only the distinct ones).

The product of its digits is 5400, while the sum is 26.

The square root of 345356 is about 587.6699754114. The cubic root of 345356 is about 70.1599065435.

Adding to 345356 its reverse (653543), we get a palindrome (998899).

The spelling of 345356 in words is "three hundred forty-five thousand, three hundred fifty-six".