331042436 has 12 divisors (see below), whose sum is σ = 579691728. Its totient is φ = 165416232.

The previous prime is 331042433. The next prime is 331042457. The reversal of 331042436 is 634240133.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (331042433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18926 + ... + 31941.

It is an arithmetic number, because the mean of its divisors is an integer number (48307644).

Almost surely, 2^331042436 is an apocalyptic number.

It is an amenable number.

331042436 is a deficient number, since it is larger than the sum of its proper divisors (248649292).

331042436 is a wasteful number, since it uses less digits than its factorization.

331042436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52498 (or 52496 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 331042436 is about 18194.5716080374. The cubic root of 331042436 is about 691.7692019923.

Adding to 331042436 its reverse (634240133), we get a palindrome (965282569).

The spelling of 331042436 in words is "three hundred thirty-one million, forty-two thousand, four hundred thirty-six".