320030464 has 144 divisors (see below), whose sum is σ = 743787072. Its totient is φ = 136249344.

The previous prime is 320030429. The next prime is 320030479. The reversal of 320030464 is 464030023.

320030464 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2832072 + ... + 2832184.

It is an arithmetic number, because the mean of its divisors is an integer number (5165188).

Almost surely, 2^320030464 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 320030464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371893536).

320030464 is an abundant number, since it is smaller than the sum of its proper divisors (423756608).

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

320030464 is a wasteful number, since it uses less digits than its factorization.

320030464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 188 counting only the distinct ones).

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

The square root of 320030464 is about 17889.3952944195. The cubic root of 320030464 is about 684.0120832766.

Adding to 320030464 its reverse (464030023), we get a palindrome (784060487).

The spelling of 320030464 in words is "three hundred twenty million, thirty thousand, four hundred sixty-four".