320451012 has 96 divisors (see below), whose sum is σ = 952439040. Its totient is φ = 91272960.

The previous prime is 320451011. The next prime is 320451013. The reversal of 320451012 is 210154023.

It is an interprime number because it is at equal distance from previous prime (320451011) and next prime (320451013).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (320451011) 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, 420712 + ... + 421472.

It is an arithmetic number, because the mean of its divisors is an integer number (9921240).

Almost surely, 2^320451012 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 320451012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (476219520).

320451012 is an abundant number, since it is smaller than the sum of its proper divisors (631988028).

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

320451012 is a wasteful number, since it uses less digits than its factorization.

320451012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338 (or 1330 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 320451012 is about 17901.1455499362. The cubic root of 320451012 is about 684.3115693510.

The spelling of 320451012 in words is "three hundred twenty million, four hundred fifty-one thousand, twelve".