320343856924 has 288 divisors, whose sum is σ = 757710159360. Its totient is φ = 115070492160.

The previous prime is 320343856919. The next prime is 320343856961. The reversal of 320343856924 is 429658343023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1043465179 + ... + 1043465485.

Almost surely, 2^320343856924 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 320343856924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (378855079680).

320343856924 is an abundant number, since it is smaller than the sum of its proper divisors (437366302436).

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

320343856924 is a wasteful number, since it uses less digits than its factorization.

320343856924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569 (or 536 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 49.

The spelling of 320343856924 in words is "three hundred twenty billion, three hundred forty-three million, eight hundred fifty-six thousand, nine hundred twenty-four".