343400234 has 4 divisors (see below), whose sum is σ = 515100354. Its totient is φ = 171700116.

The previous prime is 343400209. The next prime is 343400261. The reversal of 343400234 is 432004343.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 338449609 + 4950625 = 18397^2 + 2225^2 .

It is a super-2 number, since 2×343400234² = 235847441422509512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85850057 + ... + 85850060.

Almost surely, 2^343400234 is an apocalyptic number.

343400234 is a deficient number, since it is larger than the sum of its proper divisors (171700120).

343400234 is a wasteful number, since it uses less digits than its factorization.

343400234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171700119.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 343400234 is about 18531.0613295623. The cubic root of 343400234 is about 700.2721621960.

Adding to 343400234 its reverse (432004343), we get a palindrome (775404577).

The spelling of 343400234 in words is "three hundred forty-three million, four hundred thousand, two hundred thirty-four".