345258 has 12 divisors (see below), whose sum is σ = 748098. Its totient is φ = 115080.

The previous prime is 345229. The next prime is 345259. The reversal of 345258 is 852543.

It can be written as a sum of positive squares in only one way, i.e., 257049 + 88209 = 507^2 + 297^2 .

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

It is not an unprimeable number, because it can be changed into a prime (345259) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9573 + ... + 9608.

2³⁴⁵²⁵⁸ is an apocalyptic number.

345258 is an abundant number, since it is smaller than the sum of its proper divisors (402840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345258 is a wasteful number, since it uses less digits than its factorization.

345258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19189 (or 19186 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 345258 is about 587.5865893636. The cubic root of 345258 is about 70.1532696034.

The spelling of 345258 in words is "three hundred forty-five thousand, two hundred fifty-eight".