345856578 has 8 divisors (see below), whose sum is σ = 691713168. Its totient is φ = 115285524.

The previous prime is 345856559. The next prime is 345856631. The reversal of 345856578 is 875658543.

It is a happy number.

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

345856578 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 345856578.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28821376 + ... + 28821387.

It is an arithmetic number, because the mean of its divisors is an integer number (86464146).

Almost surely, 2^345856578 is an apocalyptic number.

345856578 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345856578 is a wasteful number, since it uses less digits than its factorization.

345856578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57642768.

The product of its digits is 4032000, while the sum is 51.

The square root of 345856578 is about 18597.2196309018. The cubic root of 345856578 is about 701.9378805594.

The spelling of 345856578 in words is "three hundred forty-five million, eight hundred fifty-six thousand, five hundred seventy-eight".