340403342 has 16 divisors (see below), whose sum is σ = 542896992. Its totient is φ = 159521280.

The previous prime is 340403341. The next prime is 340403387. The reversal of 340403342 is 243304043.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340403341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12578 + ... + 28965.

It is an arithmetic number, because the mean of its divisors is an integer number (33931062).

Almost surely, 2^340403342 is an apocalyptic number.

340403342 is a deficient number, since it is larger than the sum of its proper divisors (202493650).

340403342 is a wasteful number, since it uses less digits than its factorization.

340403342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41803.

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

The square root of 340403342 is about 18450.0228184141. The cubic root of 340403342 is about 698.2290895878.

Adding to 340403342 its reverse (243304043), we get a palindrome (583707385).

The spelling of 340403342 in words is "three hundred forty million, four hundred three thousand, three hundred forty-two".