320127864 has 64 divisors (see below), whose sum is σ = 930182400. Its totient is φ = 89912064.

The previous prime is 320127803. The next prime is 320127881. The reversal of 320127864 is 468721023.

It is a congruent number.

It is an unprimeable number.

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, 6237 + ... + 26060.

It is an arithmetic number, because the mean of its divisors is an integer number (14534100).

Almost surely, 2^320127864 is an apocalyptic number.

It is an amenable number.

320127864 is an abundant number, since it is smaller than the sum of its proper divisors (610054536).

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

320127864 is a wasteful number, since it uses less digits than its factorization.

320127864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32372 (or 32368 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 320127864 is about 17892.1173705070. The cubic root of 320127864 is about 684.0814683579.

Adding to 320127864 its reverse (468721023), we get a palindrome (788848887).

The spelling of 320127864 in words is "three hundred twenty million, one hundred twenty-seven thousand, eight hundred sixty-four".