320403460 has 96 divisors (see below), whose sum is σ = 773337600. Its totient is φ = 110522880.

The previous prime is 320403431. The next prime is 320403467. The reversal of 320403460 is 64304023.

It is not an unprimeable number, because it can be changed into a prime (320403467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 389850 + ... + 390670.

It is an arithmetic number, because the mean of its divisors is an integer number (8055600).

Almost surely, 2^320403460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320403460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386668800).

320403460 is an abundant number, since it is smaller than the sum of its proper divisors (452934140).

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

320403460 is a wasteful number, since it uses less digits than its factorization.

320403460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941 (or 939 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 320403460 is about 17899.8173175036. The cubic root of 320403460 is about 684.2777191501.

Adding to 320403460 its reverse (64304023), we get a palindrome (384707483).

The spelling of 320403460 in words is "three hundred twenty million, four hundred three thousand, four hundred sixty".