4398820 has 12 divisors (see below), whose sum is σ = 9237564. Its totient is φ = 1759520.

The previous prime is 4398817. The next prime is 4398829. The reversal of 4398820 is 288934.

It can be written as a sum of positive squares in 2 ways, for example, as 2232036 + 2166784 = 1494^2 + 1472^2 .

It is not an unprimeable number, because it can be changed into a prime (4398829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109951 + ... + 109990.

It is an arithmetic number, because the mean of its divisors is an integer number (769797).

Almost surely, 2^4398820 is an apocalyptic number.

It is an amenable number.

4398820 is an abundant number, since it is smaller than the sum of its proper divisors (4838744).

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

4398820 is a wasteful number, since it uses less digits than its factorization.

4398820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219950 (or 219948 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 4398820 is about 2097.3364060160. The cubic root of 4398820 is about 163.8496043392.

The spelling of 4398820 in words is "four million, three hundred ninety-eight thousand, eight hundred twenty".