4479820 has 24 divisors (see below), whose sum is σ = 9903600. Its totient is φ = 1697472.

The previous prime is 4479809. The next prime is 4479829. The reversal of 4479820 is 289744.

It is a happy number.

It is a d-powerful number, because it can be written as 4 + 4⁹ + 7⁵ + 9⁴ + 8⁷ + 2²¹ + 0 .

It is not an unprimeable number, because it can be changed into a prime (4479829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5515 + ... + 6274.

It is an arithmetic number, because the mean of its divisors is an integer number (412650).

Almost surely, 2^4479820 is an apocalyptic number.

It is an amenable number.

4479820 is an abundant number, since it is smaller than the sum of its proper divisors (5423780).

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

4479820 is a wasteful number, since it uses less digits than its factorization.

4479820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11817 (or 11815 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 4479820 is about 2116.5585274213. The cubic root of 4479820 is about 164.8492041314.

The spelling of 4479820 in words is "four million, four hundred seventy-nine thousand, eight hundred twenty".