320311464 has 32 divisors (see below), whose sum is σ = 873577440. Its totient is φ = 97064000.

The previous prime is 320311457. The next prime is 320311469. The reversal of 320311464 is 464113023.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (320311469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606387 + ... + 606914.

It is an arithmetic number, because the mean of its divisors is an integer number (27299295).

Almost surely, 2^320311464 is an apocalyptic number.

It is an amenable number.

320311464 is an abundant number, since it is smaller than the sum of its proper divisors (553265976).

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

320311464 is a wasteful number, since it uses less digits than its factorization.

320311464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213321 (or 1213317 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 320311464 is about 17897.2473861206. The cubic root of 320311464 is about 684.2122216896.

Adding to 320311464 its reverse (464113023), we get a palindrome (784424487).

The spelling of 320311464 in words is "three hundred twenty million, three hundred eleven thousand, four hundred sixty-four".