343402434 has 48 divisors (see below), whose sum is σ = 759507840. Its totient is φ = 112109760.

The previous prime is 343402421. The next prime is 343402453. The reversal of 343402434 is 434204343.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 343402398 and 343402407.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 212622 + ... + 214230.

It is an arithmetic number, because the mean of its divisors is an integer number (15823080).

Almost surely, 2^343402434 is an apocalyptic number.

343402434 is an abundant number, since it is smaller than the sum of its proper divisors (416105406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

343402434 is a wasteful number, since it uses less digits than its factorization.

343402434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855 (or 1852 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

The square root of 343402434 is about 18531.1206892622. The cubic root of 343402434 is about 700.2736576283.

Adding to 343402434 its reverse (434204343), we get a palindrome (777606777).

The spelling of 343402434 in words is "three hundred forty-three million, four hundred two thousand, four hundred thirty-four".