343640341 has 4 divisors (see below), whose sum is σ = 374880384. Its totient is φ = 312400300.

The previous prime is 343640317. The next prime is 343640357. The reversal of 343640341 is 143046343.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343640341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343640371) 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, 15620005 + ... + 15620026.

It is an arithmetic number, because the mean of its divisors is an integer number (93720096).

Almost surely, 2^343640341 is an apocalyptic number.

It is an amenable number.

343640341 is a deficient number, since it is larger than the sum of its proper divisors (31240043).

343640341 is a wasteful number, since it uses less digits than its factorization.

343640341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31240042.

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 343640341 is about 18537.5386985436. The cubic root of 343640341 is about 700.4353353280.

Adding to 343640341 its reverse (143046343), we get a palindrome (486686684).

The spelling of 343640341 in words is "three hundred forty-three million, six hundred forty thousand, three hundred forty-one".