340442323 has 16 divisors (see below), whose sum is σ = 408633120. Its totient is φ = 280198656.

The previous prime is 340442321. The next prime is 340442351. The reversal of 340442323 is 323244043.

It is a cyclic number.

It is not a de Polignac number, because 340442323 - 2¹ = 340442321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340442321) 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, 36340 + ... + 44737.

It is an arithmetic number, because the mean of its divisors is an integer number (25539570).

Almost surely, 2^340442323 is an apocalyptic number.

340442323 is a deficient number, since it is larger than the sum of its proper divisors (68190797).

340442323 is a wasteful number, since it uses less digits than its factorization.

340442323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81126.

The product of its (nonzero) digits is 6912, while the sum is 25.

The square root of 340442323 is about 18451.0791825302. The cubic root of 340442323 is about 698.2557409412.

Adding to 340442323 its reverse (323244043), we get a palindrome (663686366).

The spelling of 340442323 in words is "three hundred forty million, four hundred forty-two thousand, three hundred twenty-three".