345226405 has 16 divisors (see below), whose sum is σ = 425269440. Its totient is φ = 268938112.

The previous prime is 345226397. The next prime is 345226423. The reversal of 345226405 is 504622543.

It is a cyclic number.

It is not a de Polignac number, because 345226405 - 2³ = 345226397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26097 + ... + 37033.

It is an arithmetic number, because the mean of its divisors is an integer number (26579340).

Almost surely, 2^345226405 is an apocalyptic number.

It is an amenable number.

345226405 is a deficient number, since it is larger than the sum of its proper divisors (80043035).

345226405 is a wasteful number, since it uses less digits than its factorization.

345226405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11108.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 345226405 is about 18580.2692391687. The cubic root of 345226405 is about 701.5112959969.

Adding to 345226405 its reverse (504622543), we get a palindrome (849848948).

The spelling of 345226405 in words is "three hundred forty-five million, two hundred twenty-six thousand, four hundred five".