320961480 has 128 divisors (see below), whose sum is σ = 1111034880. Its totient is φ = 72656640.

The previous prime is 320961463. The next prime is 320961491. The reversal of 320961480 is 84169023.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88095 + ... + 91665.

It is an arithmetic number, because the mean of its divisors is an integer number (8679960).

Almost surely, 2^320961480 is an apocalyptic number.

320961480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320961480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (555517440).

320961480 is an abundant number, since it is smaller than the sum of its proper divisors (790073400).

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

320961480 is a wasteful number, since it uses less digits than its factorization.

320961480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3699 (or 3695 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 320961480 is about 17915.3978465453. The cubic root of 320961480 is about 684.6747385765.

The spelling of 320961480 in words is "three hundred twenty million, nine hundred sixty-one thousand, four hundred eighty".