345406 has 8 divisors (see below), whose sum is σ = 548640. Its totient is φ = 162528.

The previous prime is 345379. The next prime is 345413. The reversal of 345406 is 604543.

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

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5046 + ... + 5113.

It is an arithmetic number, because the mean of its divisors is an integer number (68580).

2³⁴⁵⁴⁰⁶ is an apocalyptic number.

345406 is a deficient number, since it is larger than the sum of its proper divisors (203234).

345406 is a wasteful number, since it uses less digits than its factorization.

345406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10178.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 345406 is about 587.7125147553. The cubic root of 345406 is about 70.1632922538.

Adding to 345406 its reverse (604543), we get a palindrome (949949).

The spelling of 345406 in words is "three hundred forty-five thousand, four hundred six".