343405316 has 12 divisors (see below), whose sum is σ = 632588880. Its totient is φ = 162665640.

The previous prime is 343405291. The next prime is 343405319. The reversal of 343405316 is 613504343.

It is a super-2 number, since 2×343405316² = 235854422114119712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (343405319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2259170 + ... + 2259321.

It is an arithmetic number, because the mean of its divisors is an integer number (52715740).

Almost surely, 2^343405316 is an apocalyptic number.

It is an amenable number.

343405316 is a deficient number, since it is larger than the sum of its proper divisors (289183564).

343405316 is a wasteful number, since it uses less digits than its factorization.

343405316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4518514 (or 4518512 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 343405316 is about 18531.1984501813. The cubic root of 343405316 is about 700.2756166351.

Adding to 343405316 its reverse (613504343), we get a palindrome (956909659).

The spelling of 343405316 in words is "three hundred forty-three million, four hundred five thousand, three hundred sixteen".