321404241 has 4 divisors (see below), whose sum is σ = 428538992. Its totient is φ = 214269492.

The previous prime is 321404203. The next prime is 321404257. The reversal of 321404241 is 142404123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 321404241 - 2⁷ = 321404113 is a prime.

It is a super-2 number, since 2×321404241² = 206601372265572162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321404141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53567371 + ... + 53567376.

It is an arithmetic number, because the mean of its divisors is an integer number (107134748).

Almost surely, 2^321404241 is an apocalyptic number.

It is an amenable number.

321404241 is a deficient number, since it is larger than the sum of its proper divisors (107134751).

321404241 is a wasteful number, since it uses less digits than its factorization.

321404241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107134750.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 321404241 is about 17927.7505839411. The cubic root of 321404241 is about 684.9894263735.

Adding to 321404241 its reverse (142404123), we get a palindrome (463808364).

The spelling of 321404241 in words is "three hundred twenty-one million, four hundred four thousand, two hundred forty-one".