345344223 has 32 divisors (see below), whose sum is σ = 540790272. Its totient is φ = 191923200.

The previous prime is 345344221. The next prime is 345344261. The reversal of 345344223 is 322443543.

It is not a de Polignac number, because 345344223 - 2¹ = 345344221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345344221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 253063 + ... + 254423.

It is an arithmetic number, because the mean of its divisors is an integer number (16899696).

Almost surely, 2^345344223 is an apocalyptic number.

345344223 is a deficient number, since it is larger than the sum of its proper divisors (195446049).

345344223 is a wasteful number, since it uses less digits than its factorization.

345344223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1695.

The product of its digits is 34560, while the sum is 30.

The square root of 345344223 is about 18583.4394825070. The cubic root of 345344223 is about 701.5910902577.

Adding to 345344223 its reverse (322443543), we get a palindrome (667787766).

The spelling of 345344223 in words is "three hundred forty-five million, three hundred forty-four thousand, two hundred twenty-three".