320489032 has 64 divisors (see below), whose sum is σ = 651006720. Its totient is φ = 147376128.

The previous prime is 320489027. The next prime is 320489041. The reversal of 320489032 is 230984023.

It is a junction number, because it is equal to n+sod(n) for n = 320488985 and 320489003.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1919013 + ... + 1919179.

It is an arithmetic number, because the mean of its divisors is an integer number (10171980).

Almost surely, 2^320489032 is an apocalyptic number.

It is an amenable number.

320489032 is an abundant number, since it is smaller than the sum of its proper divisors (330517688).

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

320489032 is a wasteful number, since it uses less digits than its factorization.

320489032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 320489032 is about 17902.2074616512. The cubic root of 320489032 is about 684.3386317267.

The spelling of 320489032 in words is "three hundred twenty million, four hundred eighty-nine thousand, thirty-two".