320948880 has 160 divisors (see below), whose sum is σ = 1153092864. Its totient is φ = 72327168.

The previous prime is 320948857. The next prime is 320948909. The reversal of 320948880 is 88849023.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 121332 + ... + 123948.

Almost surely, 2^320948880 is an apocalyptic number.

320948880 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 320948880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (576546432).

320948880 is an abundant number, since it is smaller than the sum of its proper divisors (832143984).

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

320948880 is a wasteful number, since it uses less digits than its factorization.

320948880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2713 (or 2707 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 320948880 is about 17915.0461902837. The cubic root of 320948880 is about 684.6657790231.

The spelling of 320948880 in words is "three hundred twenty million, nine hundred forty-eight thousand, eight hundred eighty".