320048820 has 360 divisors, whose sum is σ = 1249928064. Its totient is φ = 67122432.

The previous prime is 320048819. The next prime is 320048873. The reversal of 320048820 is 28840023.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1916377 + ... + 1916543.

Almost surely, 2^320048820 is an apocalyptic number.

320048820 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 320048820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (624964032).

320048820 is an abundant number, since it is smaller than the sum of its proper divisors (929879244).

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

320048820 is a wasteful number, since it uses less digits than its factorization.

320048820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 320048820 is about 17889.9083284404. The cubic root of 320048820 is about 684.0251606626.

Adding to 320048820 its reverse (28840023), we get a palindrome (348888843).

The spelling of 320048820 in words is "three hundred twenty million, forty-eight thousand, eight hundred twenty".