320968506 has 32 divisors (see below), whose sum is σ = 650081088. Its totient is φ = 105638400.

The previous prime is 320968447. The next prime is 320968507. The reversal of 320968506 is 605869023.

It is not an unprimeable number, because it can be changed into a prime (320968507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 407445 + ... + 408231.

It is an arithmetic number, because the mean of its divisors is an integer number (20315034).

Almost surely, 2^320968506 is an apocalyptic number.

320968506 is an abundant number, since it is smaller than the sum of its proper divisors (329112582).

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

320968506 is a wasteful number, since it uses less digits than its factorization.

320968506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 320968506 is about 17915.5939337774. The cubic root of 320968506 is about 684.6797344923.

The spelling of 320968506 in words is "three hundred twenty million, nine hundred sixty-eight thousand, five hundred six".