320240608 has 48 divisors (see below), whose sum is σ = 648781056. Its totient is φ = 155514240.

The previous prime is 320240581. The next prime is 320240617. The reversal of 320240608 is 806042023.

It is a happy number.

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, 289785 + ... + 290887.

It is an arithmetic number, because the mean of its divisors is an integer number (13516272).

Almost surely, 2^320240608 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 320240608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324390528).

320240608 is an abundant number, since it is smaller than the sum of its proper divisors (328540448).

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

320240608 is a wasteful number, since it uses less digits than its factorization.

320240608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367 (or 1359 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 320240608 is about 17895.2677543534. The cubic root of 320240608 is about 684.1617665109.

The spelling of 320240608 in words is "three hundred twenty million, two hundred forty thousand, six hundred eight".