345563210 has 16 divisors (see below), whose sum is σ = 622237896. Its totient is φ = 138175488.

The previous prime is 345563173. The next prime is 345563213. The reversal of 345563210 is 12365543.

It can be written as a sum of positive squares in 4 ways, for example, as 343694521 + 1868689 = 18539^2 + 1367^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (345563213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37634 + ... + 45906.

Almost surely, 2^345563210 is an apocalyptic number.

345563210 is a deficient number, since it is larger than the sum of its proper divisors (276674686).

345563210 is a wasteful number, since it uses less digits than its factorization.

345563210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12457.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 345563210 is about 18589.3305420072. The cubic root of 345563210 is about 701.7393547567.

The spelling of 345563210 in words is "three hundred forty-five million, five hundred sixty-three thousand, two hundred ten".