345578 has 8 divisors (see below), whose sum is σ = 522720. Its totient is φ = 171340.

The previous prime is 345577. The next prime is 345581. The reversal of 345578 is 875543.

It is a happy number.

345578 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (345571) 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, 398 + ... + 921.

It is an arithmetic number, because the mean of its divisors is an integer number (65340).

2³⁴⁵⁵⁷⁸ is an apocalyptic number.

345578 is a deficient number, since it is larger than the sum of its proper divisors (177142).

345578 is a wasteful number, since it uses less digits than its factorization.

345578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452.

The product of its digits is 16800, while the sum is 32.

The square root of 345578 is about 587.8588265902. The cubic root of 345578 is about 70.1749366024.

The spelling of 345578 in words is "three hundred forty-five thousand, five hundred seventy-eight".