343305404 has 12 divisors (see below), whose sum is σ = 646998744. Its totient is φ = 158448624.

The previous prime is 343305371. The next prime is 343305409. The reversal of 343305404 is 404503343.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343305409) 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, 3300962 + ... + 3301065.

It is an arithmetic number, because the mean of its divisors is an integer number (53916562).

Almost surely, 2^343305404 is an apocalyptic number.

It is an amenable number.

343305404 is a deficient number, since it is larger than the sum of its proper divisors (303693340).

343305404 is a wasteful number, since it uses less digits than its factorization.

343305404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6602044 (or 6602042 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 26.

The square root of 343305404 is about 18528.5024759153. The cubic root of 343305404 is about 700.2076961917.

Adding to 343305404 its reverse (404503343), we get a palindrome (747808747).

The spelling of 343305404 in words is "three hundred forty-three million, three hundred five thousand, four hundred four".