340232005 has 4 divisors (see below), whose sum is σ = 408278412. Its totient is φ = 272185600.

The previous prime is 340231943. The next prime is 340232017. The reversal of 340232005 is 500232043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500232043 = 4159 ⋅120277.

It can be written as a sum of positive squares in 2 ways, for example, as 271524484 + 68707521 = 16478^2 + 8289^2 .

It is not a de Polignac number, because 340232005 - 2¹³ = 340223813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34023196 + ... + 34023205.

It is an arithmetic number, because the mean of its divisors is an integer number (102069603).

Almost surely, 2^340232005 is an apocalyptic number.

It is an amenable number.

340232005 is a deficient number, since it is larger than the sum of its proper divisors (68046407).

340232005 is an equidigital number, since it uses as much as digits as its factorization.

340232005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68046406.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 340232005 is about 18445.3789605961. The cubic root of 340232005 is about 698.1119221572. Note that the first 3 decimals are identical.

Adding to 340232005 its reverse (500232043), we get a palindrome (840464048).

The spelling of 340232005 in words is "three hundred forty million, two hundred thirty-two thousand, five".