345838 has 12 divisors (see below), whose sum is σ = 548640. Its totient is φ = 163476.

The previous prime is 345823. The next prime is 345853. The reversal of 345838 is 838543.

It is an interprime number because it is at equal distance from previous prime (345823) and next prime (345853).

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

It is a congruent number.

It is an unprimeable number.

345838 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 (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 483 + ... + 961.

It is an arithmetic number, because the mean of its divisors is an integer number (45720).

2³⁴⁵⁸³⁸ is an apocalyptic number.

345838 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

345838 is a deficient number, since it is larger than the sum of its proper divisors (202802).

345838 is a wasteful number, since it uses less digits than its factorization.

345838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519 (or 500 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 345838 is about 588.0799265406. The cubic root of 345838 is about 70.1925311924.

The spelling of 345838 in words is "three hundred forty-five thousand, eight hundred thirty-eight".