4550820 has 48 divisors (see below), whose sum is σ = 12929280. Its totient is φ = 1195776.

The previous prime is 4550813. The next prime is 4550839. The reversal of 4550820 is 280554.

4550820 is nontrivially palindromic in base 14.

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, 3861 + ... + 4899.

It is an arithmetic number, because the mean of its divisors is an integer number (269360).

Almost surely, 2^4550820 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 4550820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6464640).

4550820 is an abundant number, since it is smaller than the sum of its proper divisors (8378460).

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

4550820 is a wasteful number, since it uses less digits than its factorization.

4550820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124 (or 1122 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 4550820 is about 2133.2651030756. The cubic root of 4550820 is about 165.7155335108.

The spelling of 4550820 in words is "four million, five hundred fifty thousand, eight hundred twenty".