343402131 has 8 divisors (see below), whose sum is σ = 459786240. Its totient is φ = 227976392.

The previous prime is 343402117. The next prime is 343402151. The reversal of 343402131 is 131204343.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 343402131 - 2⁵ = 343402099 is a prime.

It is a super-2 number, since 2×343402131² = 235850047150682322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 343402098 and 343402107.

It is not an unprimeable number, because it can be changed into a prime (343402151) 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 7 ways as a sum of consecutive naturals, for example, 238755 + ... + 240188.

It is an arithmetic number, because the mean of its divisors is an integer number (57473280).

Almost surely, 2^343402131 is an apocalyptic number.

343402131 is a deficient number, since it is larger than the sum of its proper divisors (116384109).

343402131 is a wasteful number, since it uses less digits than its factorization.

343402131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479185.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 343402131 is about 18531.1125138239. The cubic root of 343402131 is about 700.2734516669.

Adding to 343402131 its reverse (131204343), we get a palindrome (474606474).

The spelling of 343402131 in words is "three hundred forty-three million, four hundred two thousand, one hundred thirty-one".