320412132 has 48 divisors (see below), whose sum is σ = 832265280. Its totient is φ = 106602624.

The previous prime is 320412109. The next prime is 320412161. The reversal of 320412132 is 231214023.

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

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 61543 + ... + 66545.

It is an arithmetic number, because the mean of its divisors is an integer number (17338860).

Almost surely, 2^320412132 is an apocalyptic number.

It is an amenable number.

320412132 is an abundant number, since it is smaller than the sum of its proper divisors (511853148).

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

320412132 is a wasteful number, since it uses less digits than its factorization.

320412132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5609 (or 5601 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 320412132 is about 17900.0595529736. The cubic root of 320412132 is about 684.2838926195.

Adding to 320412132 its reverse (231214023), we get a palindrome (551626155).

The spelling of 320412132 in words is "three hundred twenty million, four hundred twelve thousand, one hundred thirty-two".