320483988 has 216 divisors, whose sum is σ = 958557600. Its totient is φ = 90034560.

The previous prime is 320483971. The next prime is 320484019. The reversal of 320483988 is 889384023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5431903 + ... + 5431961.

Almost surely, 2^320483988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320483988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (479278800).

320483988 is an abundant number, since it is smaller than the sum of its proper divisors (638073612).

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

320483988 is a wasteful number, since it uses less digits than its factorization.

320483988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 320483988 is about 17902.0665846153. The cubic root of 320483988 is about 684.3350415652.

The spelling of 320483988 in words is "three hundred twenty million, four hundred eighty-three thousand, nine hundred eighty-eight".