345028 has 6 divisors (see below), whose sum is σ = 603806. Its totient is φ = 172512.

The previous prime is 345019. The next prime is 345041. The reversal of 345028 is 820543.

It can be written as a sum of positive squares in only one way, i.e., 186624 + 158404 = 432^2 + 398^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43125 + ... + 43132.

2³⁴⁵⁰²⁸ is an apocalyptic number.

It is an amenable number.

345028 is a deficient number, since it is larger than the sum of its proper divisors (258778).

345028 is a wasteful number, since it uses less digits than its factorization.

345028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86261 (or 86259 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 345028 is about 587.3908409228. The cubic root of 345028 is about 70.1376881770.

The spelling of 345028 in words is "three hundred forty-five thousand, twenty-eight".