321132404 has 12 divisors (see below), whose sum is σ = 562109184. Its totient is φ = 160529784.

The previous prime is 321132401. The next prime is 321132443. The reversal of 321132404 is 404231123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321132401) 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, 24587 + ... + 35309.

It is an arithmetic number, because the mean of its divisors is an integer number (46842432).

Almost surely, 2^321132404 is an apocalyptic number.

It is an amenable number.

321132404 is a deficient number, since it is larger than the sum of its proper divisors (240976780).

321132404 is a wasteful number, since it uses less digits than its factorization.

321132404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18214 (or 18212 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 321132404 is about 17920.1675215384. The cubic root of 321132404 is about 684.7962553157.

Adding to 321132404 its reverse (404231123), we get a palindrome (725363527).

The spelling of 321132404 in words is "three hundred twenty-one million, one hundred thirty-two thousand, four hundred four".