345458 has 8 divisors (see below), whose sum is σ = 545520. Its totient is φ = 163620.

The previous prime is 345451. The next prime is 345461. The reversal of 345458 is 854543.

It is a sphenic number, since it is the product of 3 distinct primes.

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

It is a self number, because there is not a number n which added to its sum of digits gives 345458.

It is not an unprimeable number, because it can be changed into a prime (345451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4508 + ... + 4583.

It is an arithmetic number, because the mean of its divisors is an integer number (68190).

2³⁴⁵⁴⁵⁸ is an apocalyptic number.

345458 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

345458 is a deficient number, since it is larger than the sum of its proper divisors (200062).

345458 is a wasteful number, since it uses less digits than its factorization.

345458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9112.

The product of its digits is 9600, while the sum is 29.

The square root of 345458 is about 587.7567524070. The cubic root of 345458 is about 70.1668130458.

The spelling of 345458 in words is "three hundred forty-five thousand, four hundred fifty-eight".