4227820 has 24 divisors (see below), whose sum is σ = 8949024. Its totient is φ = 1677696.

The previous prime is 4227809. The next prime is 4227827. The reversal of 4227820 is 287224.

It is not an unprimeable number, because it can be changed into a prime (4227827) 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, 1969 + ... + 3511.

It is an arithmetic number, because the mean of its divisors is an integer number (372876).

Almost surely, 2^4227820 is an apocalyptic number.

It is an amenable number.

4227820 is an abundant number, since it is smaller than the sum of its proper divisors (4721204).

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

4227820 is a wasteful number, since it uses less digits than its factorization.

4227820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1689 (or 1687 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 4227820 is about 2056.1663356840. The cubic root of 4227820 is about 161.6983157414.

The spelling of 4227820 in words is "four million, two hundred twenty-seven thousand, eight hundred twenty".