345244209 has 8 divisors (see below), whose sum is σ = 460820640. Its totient is φ = 229915296.

The previous prime is 345244199. The next prime is 345244219. The reversal of 345244209 is 902442543.

It is an interprime number because it is at equal distance from previous prime (345244199) and next prime (345244219).

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

It is not a de Polignac number, because 345244209 - 2²⁰ = 344195633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345244209.

It is not an unprimeable number, because it can be changed into a prime (345244219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58599 + ... + 64220.

It is an arithmetic number, because the mean of its divisors is an integer number (57602580).

Almost surely, 2^345244209 is an apocalyptic number.

It is an amenable number.

345244209 is a deficient number, since it is larger than the sum of its proper divisors (115576431).

345244209 is a wasteful number, since it uses less digits than its factorization.

345244209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123759.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 345244209 is about 18580.7483433795. The cubic root of 345244209 is about 701.5233552255.

The spelling of 345244209 in words is "three hundred forty-five million, two hundred forty-four thousand, two hundred nine".