331244342 has 16 divisors (see below), whose sum is σ = 583731792. Its totient is φ = 138983520.

The previous prime is 331244341. The next prime is 331244369. The reversal of 331244342 is 243442133.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331244341) by changing a digit.

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, 578813 + ... + 579384.

It is an arithmetic number, because the mean of its divisors is an integer number (36483237).

Almost surely, 2^331244342 is an apocalyptic number.

331244342 is a deficient number, since it is larger than the sum of its proper divisors (252487450).

331244342 is a wasteful number, since it uses less digits than its factorization.

331244342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158223.

The product of its digits is 6912, while the sum is 26.

The square root of 331244342 is about 18200.1192853234. The cubic root of 331244342 is about 691.9098123301.

Adding to 331244342 its reverse (243442133), we get a palindrome (574686475).

The spelling of 331244342 in words is "three hundred thirty-one million, two hundred forty-four thousand, three hundred forty-two".