331204042 has 8 divisors (see below), whose sum is σ = 535021956. Its totient is φ = 152863392.

The previous prime is 331204039. The next prime is 331204043. The reversal of 331204042 is 240402133.

It can be written as a sum of positive squares in 2 ways, for example, as 331203601 + 441 = 18199^2 + 21^2 .

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

It is a super-2 number, since 2×331204042² = 219392234874275528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331204043) 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 3 ways as a sum of consecutive naturals, for example, 6369283 + ... + 6369334.

Almost surely, 2^331204042 is an apocalyptic number.

331204042 is a deficient number, since it is larger than the sum of its proper divisors (203817914).

331204042 is a wasteful number, since it uses less digits than its factorization.

331204042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12738632.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 331204042 is about 18199.0121160463. The cubic root of 331204042 is about 691.8817513765.

Adding to 331204042 its reverse (240402133), we get a palindrome (571606175).

The spelling of 331204042 in words is "three hundred thirty-one million, two hundred four thousand, forty-two".