321642196 has 6 divisors (see below), whose sum is σ = 562873850. Its totient is φ = 160821096.

The previous prime is 321642169. The next prime is 321642199. The reversal of 321642196 is 691246123.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 278556100 + 43086096 = 16690^2 + 6564^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321642199) 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 as a sum of consecutive naturals, namely, 40205271 + ... + 40205278.

Almost surely, 2^321642196 is an apocalyptic number.

It is an amenable number.

321642196 is a deficient number, since it is larger than the sum of its proper divisors (241231654).

321642196 is a wasteful number, since it uses less digits than its factorization.

321642196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80410553 (or 80410551 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 321642196 is about 17934.3858551108. The cubic root of 321642196 is about 685.1584310403.

The spelling of 321642196 in words is "three hundred twenty-one million, six hundred forty-two thousand, one hundred ninety-six".