321040433 has 8 divisors (see below), whose sum is σ = 378739200. Its totient is φ = 266300640.

The previous prime is 321040403. The next prime is 321040441. The reversal of 321040433 is 334040123.

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

It is a cyclic number.

It is not a de Polignac number, because 321040433 - 2²⁴ = 304263217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (321040403) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 739508 + ... + 739941.

It is an arithmetic number, because the mean of its divisors is an integer number (47342400).

Almost surely, 2^321040433 is an apocalyptic number.

It is an amenable number.

321040433 is a deficient number, since it is larger than the sum of its proper divisors (57698767).

321040433 is a wasteful number, since it uses less digits than its factorization.

321040433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479487.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 321040433 is about 17917.6012066348. The cubic root of 321040433 is about 684.7308747965.

Adding to 321040433 its reverse (334040123), we get a palindrome (655080556).

The spelling of 321040433 in words is "three hundred twenty-one million, forty thousand, four hundred thirty-three".