343278434 has 32 divisors (see below), whose sum is σ = 550255680. Its totient is φ = 160157952.

The previous prime is 343278413. The next prime is 343278437. The reversal of 343278434 is 434872343.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (343278437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1212857 + ... + 1213139.

It is an arithmetic number, because the mean of its divisors is an integer number (17195490).

Almost surely, 2^343278434 is an apocalyptic number.

343278434 is a deficient number, since it is larger than the sum of its proper divisors (206977246).

343278434 is a wasteful number, since it uses less digits than its factorization.

343278434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674.

The product of its digits is 193536, while the sum is 38.

The square root of 343278434 is about 18527.7746640011. The cubic root of 343278434 is about 700.1893596553.

The spelling of 343278434 in words is "three hundred forty-three million, two hundred seventy-eight thousand, four hundred thirty-four".