345294369 has 24 divisors (see below), whose sum is σ = 570519872. Its totient is φ = 197134560.

The previous prime is 345294319. The next prime is 345294409. The reversal of 345294369 is 963492543.

It is not a de Polignac number, because 345294369 - 2⁷ = 345294241 is a prime.

It is a super-2 number, since 2×345294369² = 238456402526216322, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345294319) 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 23 ways as a sum of consecutive naturals, for example, 106959 + ... + 110139.

Almost surely, 2^345294369 is an apocalyptic number.

It is an amenable number.

345294369 is a deficient number, since it is larger than the sum of its proper divisors (225225503).

345294369 is a wasteful number, since it uses less digits than its factorization.

345294369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4917 (or 4914 counting only the distinct ones).

The product of its digits is 699840, while the sum is 45.

The square root of 345294369 is about 18582.0980785271. The cubic root of 345294369 is about 701.5573279966.

The spelling of 345294369 in words is "three hundred forty-five million, two hundred ninety-four thousand, three hundred sixty-nine".