320954816 has 56 divisors (see below), whose sum is σ = 783884640. Its totient is φ = 126968832.

The previous prime is 320954807. The next prime is 320954827. The reversal of 320954816 is 618459023.

It is a happy number.

320954816 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (56).

It is a self number, because there is not a number n which added to its sum of digits gives 320954816.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21731 + ... + 33378.

It is an arithmetic number, because the mean of its divisors is an integer number (13997940).

Almost surely, 2^320954816 is an apocalyptic number.

It is an amenable number.

320954816 is an abundant number, since it is smaller than the sum of its proper divisors (462929824).

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

320954816 is a wasteful number, since it uses less digits than its factorization.

320954816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55141 (or 55131 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 320954816 is about 17915.2118603158. The cubic root of 320954816 is about 684.6699999975.

The spelling of 320954816 in words is "three hundred twenty million, nine hundred fifty-four thousand, eight hundred sixteen".