331444042 has 8 divisors (see below), whose sum is σ = 504586656. Its totient is φ = 163248492.

The previous prime is 331444031. The next prime is 331444051. The reversal of 331444042 is 240444133.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 331443998 and 331444016.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1236598 + ... + 1236865.

It is an arithmetic number, because the mean of its divisors is an integer number (63073332).

Almost surely, 2^331444042 is an apocalyptic number.

331444042 is a deficient number, since it is larger than the sum of its proper divisors (173142614).

331444042 is a wasteful number, since it uses less digits than its factorization.

331444042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2473532.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 331444042 is about 18205.6046864695. The cubic root of 331444042 is about 692.0488301827.

Adding to 331444042 its reverse (240444133), we get a palindrome (571888175).

Subtracting from 331444042 its reverse (240444133), we obtain a palindrome (90999909).

The spelling of 331444042 in words is "three hundred thirty-one million, four hundred forty-four thousand, forty-two".