320740063 has 4 divisors (see below), whose sum is σ = 366560080. Its totient is φ = 274920048.

The previous prime is 320740001. The next prime is 320740067. The reversal of 320740063 is 360047023.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 320740063 - 2¹³ = 320731871 is a prime.

It is a super-3 number, since 3×320740063³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320740067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22909998 + ... + 22910011.

It is an arithmetic number, because the mean of its divisors is an integer number (91640020).

Almost surely, 2^320740063 is an apocalyptic number.

320740063 is a deficient number, since it is larger than the sum of its proper divisors (45820017).

320740063 is an equidigital number, since it uses as much as digits as its factorization.

320740063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45820016.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 320740063 is about 17909.2172637444. The cubic root of 320740063 is about 684.5172601772.

Adding to 320740063 its reverse (360047023), we get a palindrome (680787086).

The spelling of 320740063 in words is "three hundred twenty million, seven hundred forty thousand, sixty-three".