321234404 has 12 divisors (see below), whose sum is σ = 563958444. Its totient is φ = 160103424.

The previous prime is 321234391. The next prime is 321234413. The reversal of 321234404 is 404432123.

It can be written as a sum of positive squares in 2 ways, for example, as 15054400 + 306180004 = 3880^2 + 17498^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 321234404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127037 + ... + 129540.

It is an arithmetic number, because the mean of its divisors is an integer number (46996537).

Almost surely, 2^321234404 is an apocalyptic number.

It is an amenable number.

321234404 is a deficient number, since it is larger than the sum of its proper divisors (242724040).

321234404 is a wasteful number, since it uses less digits than its factorization.

321234404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256894 (or 256892 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 321234404 is about 17923.0132511249. The cubic root of 321234404 is about 684.8687506719.

Adding to 321234404 its reverse (404432123), we get a palindrome (725666527).

The spelling of 321234404 in words is "three hundred twenty-one million, two hundred thirty-four thousand, four hundred four".