321234704 has 80 divisors (see below), whose sum is σ = 730131840. Its totient is φ = 134077440.

The previous prime is 321234677. The next prime is 321234751. The reversal of 321234704 is 407432123.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1143044 + ... + 1143324.

It is an arithmetic number, because the mean of its divisors is an integer number (9126648).

Almost surely, 2^321234704 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 321234704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365065920).

321234704 is an abundant number, since it is smaller than the sum of its proper divisors (408897136).

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

321234704 is a wasteful number, since it uses less digits than its factorization.

321234704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528 (or 522 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 321234704 is about 17923.0216202514. The cubic root of 321234704 is about 684.8689638709.

Adding to 321234704 its reverse (407432123), we get a palindrome (728666827).

The spelling of 321234704 in words is "three hundred twenty-one million, two hundred thirty-four thousand, seven hundred four".