234345 has 16 divisors (see below), whose sum is σ = 397440. Its totient is φ = 117504.

The previous prime is 234343. The next prime is 234361. The reversal of 234345 is 543432.

234345 = T₁₀₀ + T₁₀₁ + ... + T₁₃₃.

It is a happy number.

234345 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 234345 - 2¹ = 234343 is a prime.

It is a d-powerful number, because it can be written as 2¹⁷ + 3⁷ + 3⁸ + 4² + 4⁷ + 5⁷ .

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

234345 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (234341) 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, 205 + ... + 714.

It is an arithmetic number, because the mean of its divisors is an integer number (24840).

2²³⁴³⁴⁵ is an apocalyptic number.

It is an amenable number.

234345 is a deficient number, since it is larger than the sum of its proper divisors (163095).

234345 is a wasteful number, since it uses less digits than its factorization.

234345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944.

The product of its digits is 1440, while the sum is 21.

The square root of 234345 is about 484.0919334176. The cubic root of 234345 is about 61.6526711198.

Adding to 234345 its reverse (543432), we get a palindrome (777777).

The spelling of 234345 in words is "two hundred thirty-four thousand, three hundred forty-five".