331240342 has 16 divisors (see below), whose sum is σ = 548962272. Its totient is φ = 149100160.

The previous prime is 331240339. The next prime is 331240379. The reversal of 331240342 is 243042133.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211009 + ... + 212572.

It is an arithmetic number, because the mean of its divisors is an integer number (34310142).

Almost surely, 2^331240342 is an apocalyptic number.

331240342 is a deficient number, since it is larger than the sum of its proper divisors (217721930).

331240342 is a wasteful number, since it uses less digits than its factorization.

331240342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423623.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 331240342 is about 18200.0093956020. The cubic root of 331240342 is about 691.9070272255.

Adding to 331240342 its reverse (243042133), we get a palindrome (574282475).

The spelling of 331240342 in words is "three hundred thirty-one million, two hundred forty thousand, three hundred forty-two".