343131406 has 8 divisors (see below), whose sum is σ = 514794024. Its totient is φ = 171533400.

The previous prime is 343131391. The next prime is 343131407. The reversal of 343131406 is 604131343.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343131407) 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, 601 + ... + 26203.

It is an arithmetic number, because the mean of its divisors is an integer number (64349253).

Almost surely, 2^343131406 is an apocalyptic number.

343131406 is a deficient number, since it is larger than the sum of its proper divisors (171662618).

343131406 is a wasteful number, since it uses less digits than its factorization.

343131406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32306.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 343131406 is about 18523.8064662747. The cubic root of 343131406 is about 700.0893804236.

Adding to 343131406 its reverse (604131343), we get a palindrome (947262749).

The spelling of 343131406 in words is "three hundred forty-three million, one hundred thirty-one thousand, four hundred six".