345236 has 12 divisors (see below), whose sum is σ = 639828. Its totient is φ = 162432.

The previous prime is 345229. The next prime is 345259. The reversal of 345236 is 632543.

It can be written as a sum of positive squares in 2 ways, for example, as 309136 + 36100 = 556^2 + 190^2 .

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

345236 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 3 ways as a sum of consecutive naturals, for example, 2471 + ... + 2606.

It is an arithmetic number, because the mean of its divisors is an integer number (53319).

2³⁴⁵²³⁶ is an apocalyptic number.

It is an amenable number.

345236 is a deficient number, since it is larger than the sum of its proper divisors (294592).

345236 is a wasteful number, since it uses less digits than its factorization.

345236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5098 (or 5096 counting only the distinct ones).

The product of its digits is 2160, while the sum is 23.

The square root of 345236 is about 587.5678684203. The cubic root of 345236 is about 70.1517795054.

Adding to 345236 its reverse (632543), we get a palindrome (977779).

The spelling of 345236 in words is "three hundred forty-five thousand, two hundred thirty-six".