320442130 has 8 divisors (see below), whose sum is σ = 576795852. Its totient is φ = 128176848.

The previous prime is 320442127. The next prime is 320442131. The reversal of 320442130 is 31244023.

It can be written as a sum of positive squares in 2 ways, for example, as 319444129 + 998001 = 17873^2 + 999^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 320442098 and 320442107.

It is not an unprimeable number, because it can be changed into a prime (320442131) 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 3 ways as a sum of consecutive naturals, for example, 16022097 + ... + 16022116.

Almost surely, 2^320442130 is an apocalyptic number.

320442130 is a deficient number, since it is larger than the sum of its proper divisors (256353722).

320442130 is a wasteful number, since it uses less digits than its factorization.

320442130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32044220.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 320442130 is about 17900.8974635352. The cubic root of 320442130 is about 684.3052468958.

Adding to 320442130 its reverse (31244023), we get a palindrome (351686153).

The spelling of 320442130 in words is "three hundred twenty million, four hundred forty-two thousand, one hundred thirty".