345926209 has 8 divisors (see below), whose sum is σ = 355625280. Its totient is φ = 336245616.

The previous prime is 345926201. The next prime is 345926237. The reversal of 345926209 is 902629543.

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

It is a cyclic number.

It is not a de Polignac number, because 345926209 - 2³ = 345926201 is a prime.

It is a super-2 number, since 2×345926209² = 239329884146223362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345926201) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 39012 + ... + 47050.

It is an arithmetic number, because the mean of its divisors is an integer number (44453160).

Almost surely, 2^345926209 is an apocalyptic number.

It is an amenable number.

345926209 is a deficient number, since it is larger than the sum of its proper divisors (9699071).

345926209 is a wasteful number, since it uses less digits than its factorization.

345926209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9239.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 345926209 is about 18599.0916176033. The cubic root of 345926209 is about 701.9849842433.

The spelling of 345926209 in words is "three hundred forty-five million, nine hundred twenty-six thousand, two hundred nine".