4821320 has 64 divisors (see below), whose sum is σ = 12631680. Its totient is φ = 1622016.

The previous prime is 4821317. The next prime is 4821331. The reversal of 4821320 is 231284.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4821292 and 4821301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18632 + ... + 18888.

It is an arithmetic number, because the mean of its divisors is an integer number (197370).

Almost surely, 2^4821320 is an apocalyptic number.

4821320 is a gapful number since it is divisible by the number (40) 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 4821320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6315840).

4821320 is an abundant number, since it is smaller than the sum of its proper divisors (7810360).

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

4821320 is a wasteful number, since it uses less digits than its factorization.

4821320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 4821320 is about 2195.7504411932. The cubic root of 4821320 is about 168.9359139853.

The spelling of 4821320 in words is "four million, eight hundred twenty-one thousand, three hundred twenty".