345626578 has 12 divisors (see below), whose sum is σ = 569855790. Its totient is φ = 157102880.

The previous prime is 345626573. The next prime is 345626581. The reversal of 345626578 is 875626543.

345626578 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 295599249 + 50027329 = 17193^2 + 7073^2 .

It is not an unprimeable number, because it can be changed into a prime (345626573) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 713863 + ... + 714346.

Almost surely, 2^345626578 is an apocalyptic number.

345626578 is a deficient number, since it is larger than the sum of its proper divisors (224229212).

345626578 is a wasteful number, since it uses less digits than its factorization.

345626578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428233 (or 1428222 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 46.

The square root of 345626578 is about 18591.0348824373. The cubic root of 345626578 is about 701.7822461876.

The spelling of 345626578 in words is "three hundred forty-five million, six hundred twenty-six thousand, five hundred seventy-eight".