321434304 has 56 divisors (see below), whose sum is σ = 856171008. Its totient is φ = 106425600.

The previous prime is 321434299. The next prime is 321434339. The reversal of 321434304 is 403434123.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23449 + ... + 34535.

It is an arithmetic number, because the mean of its divisors is an integer number (15288768).

Almost surely, 2^321434304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321434304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (428085504).

321434304 is an abundant number, since it is smaller than the sum of its proper divisors (534736704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321434304 is a wasteful number, since it uses less digits than its factorization.

321434304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11253 (or 11243 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 321434304 is about 17928.5890130819. The cubic root of 321434304 is about 685.0107828590.

Adding to 321434304 its reverse (403434123), we get a palindrome (724868427).

The spelling of 321434304 in words is "three hundred twenty-one million, four hundred thirty-four thousand, three hundred four".