320134344 has 128 divisors (see below), whose sum is σ = 907977600. Its totient is φ = 93450240.

The previous prime is 320134333. The next prime is 320134349. The reversal of 320134344 is 443431023.

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 (320134349) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 472534 + ... + 473210.

It is an arithmetic number, because the mean of its divisors is an integer number (7093575).

Almost surely, 2^320134344 is an apocalyptic number.

320134344 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320134344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (453988800).

320134344 is an abundant number, since it is smaller than the sum of its proper divisors (587843256).

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

320134344 is a wasteful number, since it uses less digits than its factorization.

320134344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 320134344 is about 17892.2984549219. The cubic root of 320134344 is about 684.0860840323.

Adding to 320134344 its reverse (443431023), we get a palindrome (763565367).

The spelling of 320134344 in words is "three hundred twenty million, one hundred thirty-four thousand, three hundred forty-four".