343678426 has 64 divisors (see below), whose sum is σ = 678440448. Its totient is φ = 126701568.

The previous prime is 343678393. The next prime is 343678427. The reversal of 343678426 is 624876343.

It is a happy number.

It is a super-2 number, since 2×343678426² = 236229720995674952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (343678427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 349131 + ... + 350113.

It is an arithmetic number, because the mean of its divisors is an integer number (10600632).

Almost surely, 2^343678426 is an apocalyptic number.

343678426 is a deficient number, since it is larger than the sum of its proper divisors (334762022).

343678426 is a wasteful number, since it uses less digits than its factorization.

343678426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135.

The product of its digits is 580608, while the sum is 43.

The square root of 343678426 is about 18538.5659100158. The cubic root of 343678426 is about 700.4612103404.

The spelling of 343678426 in words is "three hundred forty-three million, six hundred seventy-eight thousand, four hundred twenty-six".