331225004 has 12 divisors (see below), whose sum is σ = 632338728. Its totient is φ = 150556800.

The previous prime is 331225003. The next prime is 331225021. The reversal of 331225004 is 400522133.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (331225003) 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, 3763877 + ... + 3763964.

It is an arithmetic number, because the mean of its divisors is an integer number (52694894).

Almost surely, 2^331225004 is an apocalyptic number.

It is an amenable number.

331225004 is a deficient number, since it is larger than the sum of its proper divisors (301113724).

331225004 is a wasteful number, since it uses less digits than its factorization.

331225004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7527856 (or 7527854 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 331225004 is about 18199.5880173151. The cubic root of 331225004 is about 691.8963475342.

Adding to 331225004 its reverse (400522133), we get a palindrome (731747137).

The spelling of 331225004 in words is "three hundred thirty-one million, two hundred twenty-five thousand, four".