321052704 has 144 divisors (see below), whose sum is σ = 989737056. Its totient is φ = 90854400.

The previous prime is 321052691. The next prime is 321052717. The reversal of 321052704 is 407250123.

It is an interprime number because it is at equal distance from previous prime (321052691) and next prime (321052717).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 615964 + ... + 616484.

It is an arithmetic number, because the mean of its divisors is an integer number (6873174).

Almost surely, 2^321052704 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 321052704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (494868528).

321052704 is an abundant number, since it is smaller than the sum of its proper divisors (668684352).

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

321052704 is a wasteful number, since it uses less digits than its factorization.

321052704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679 (or 664 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 321052704 is about 17917.9436320131. The cubic root of 321052704 is about 684.7395987501.

The spelling of 321052704 in words is "three hundred twenty-one million, fifty-two thousand, seven hundred four".