343140415 has 4 divisors (see below), whose sum is σ = 411768504. Its totient is φ = 274512328.

The previous prime is 343140397. The next prime is 343140419. The reversal of 343140415 is 514041343.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 343140415 - 2¹⁷ = 343009343 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 343140415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343140419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34314037 + ... + 34314046.

It is an arithmetic number, because the mean of its divisors is an integer number (102942126).

Almost surely, 2^343140415 is an apocalyptic number.

343140415 is a deficient number, since it is larger than the sum of its proper divisors (68628089).

343140415 is an equidigital number, since it uses as much as digits as its factorization.

343140415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68628088.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 343140415 is about 18524.0496382406. The cubic root of 343140415 is about 700.0955073766.

Adding to 343140415 its reverse (514041343), we get a palindrome (857181758).

The spelling of 343140415 in words is "three hundred forty-three million, one hundred forty thousand, four hundred fifteen".