321421214 has 16 divisors (see below), whose sum is σ = 508366800. Its totient is φ = 151994304.

The previous prime is 321421213. The next prime is 321421223. The reversal of 321421214 is 412124123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321421213) 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 7 ways as a sum of consecutive naturals, for example, 16592 + ... + 30300.

It is an arithmetic number, because the mean of its divisors is an integer number (31772925).

Almost surely, 2^321421214 is an apocalyptic number.

321421214 is a deficient number, since it is larger than the sum of its proper divisors (186945586).

321421214 is a wasteful number, since it uses less digits than its factorization.

321421214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14347.

The product of its digits is 384, while the sum is 20.

The square root of 321421214 is about 17928.2239499622. The cubic root of 321421214 is about 685.0014840041.

Adding to 321421214 its reverse (412124123), we get a palindrome (733545337).

The spelling of 321421214 in words is "three hundred twenty-one million, four hundred twenty-one thousand, two hundred fourteen".