320630026 has 8 divisors (see below), whose sum is σ = 481443264. Its totient is φ = 160148940.

The previous prime is 320630017. The next prime is 320630027. The reversal of 320630026 is 620036023.

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

It is a super-2 number, since 2×320630026² = 205607227145521352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320629979 and 320630006.

It is not an unprimeable number, because it can be changed into a prime (320630027) 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, 80610 + ... + 84493.

It is an arithmetic number, because the mean of its divisors is an integer number (60180408).

Almost surely, 2^320630026 is an apocalyptic number.

320630026 is a deficient number, since it is larger than the sum of its proper divisors (160813238).

320630026 is a wasteful number, since it uses less digits than its factorization.

320630026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166076.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 320630026 is about 17906.1449229029. The cubic root of 320630026 is about 684.4389716088.

Adding to 320630026 its reverse (620036023), we get a palindrome (940666049).

The spelling of 320630026 in words is "three hundred twenty million, six hundred thirty thousand, twenty-six".