320412172 has 12 divisors (see below), whose sum is σ = 585100656. Its totient is φ = 153240560.

The previous prime is 320412163. The next prime is 320412179. The reversal of 320412172 is 271214023.

It is not an unprimeable number, because it can be changed into a prime (320412179) 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 3 ways as a sum of consecutive naturals, for example, 1741279 + ... + 1741462.

It is an arithmetic number, because the mean of its divisors is an integer number (48758388).

Almost surely, 2^320412172 is an apocalyptic number.

It is an amenable number.

320412172 is a deficient number, since it is larger than the sum of its proper divisors (264688484).

320412172 is a wasteful number, since it uses less digits than its factorization.

320412172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3482768 (or 3482766 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 320412172 is about 17900.0606702882. The cubic root of 320412172 is about 684.2839210946.

Adding to 320412172 its reverse (271214023), we get a palindrome (591626195).

It can be divided in two parts, 3204 and 12172, that added together give a square (15376 = 124²).

The spelling of 320412172 in words is "three hundred twenty million, four hundred twelve thousand, one hundred seventy-two".