320239488 has 128 divisors (see below), whose sum is σ = 898905600. Its totient is φ = 100812800.

The previous prime is 320239483. The next prime is 320239501. The reversal of 320239488 is 884932023.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-5 number, since 5×320239488⁵ (a number of 44 digits) contains 55555 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320239483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 891853 + ... + 892211.

It is an arithmetic number, because the mean of its divisors is an integer number (7022700).

Almost surely, 2^320239488 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 320239488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (449452800).

320239488 is an abundant number, since it is smaller than the sum of its proper divisors (578666112).

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

320239488 is a wasteful number, since it uses less digits than its factorization.

320239488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 320239488 is about 17895.2364611368. The cubic root of 320239488 is about 684.1609689210.

The spelling of 320239488 in words is "three hundred twenty million, two hundred thirty-nine thousand, four hundred eighty-eight".