321403042 has 8 divisors (see below), whose sum is σ = 482818716. Its totient is φ = 160463472.

The previous prime is 321403039. The next prime is 321403067. The reversal of 321403042 is 240304123.

It can be written as a sum of positive squares in 2 ways, for example, as 321090561 + 312481 = 17919^2 + 559^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117333 + ... + 120040.

Almost surely, 2^321403042 is an apocalyptic number.

321403042 is a deficient number, since it is larger than the sum of its proper divisors (161415674).

321403042 is a wasteful number, since it uses less digits than its factorization.

321403042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238052.

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

The square root of 321403042 is about 17927.7171441319. The cubic root of 321403042 is about 684.9885745870.

Adding to 321403042 its reverse (240304123), we get a palindrome (561707165).

The spelling of 321403042 in words is "three hundred twenty-one million, four hundred three thousand, forty-two".