4425820 has 48 divisors (see below), whose sum is σ = 10761408. Its totient is φ = 1497600.

The previous prime is 4425791. The next prime is 4425833. The reversal of 4425820 is 285244.

It is a happy number.

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 13984 + ... + 14296.

It is an arithmetic number, because the mean of its divisors is an integer number (224196).

Almost surely, 2^4425820 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 4425820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5380704).

4425820 is an abundant number, since it is smaller than the sum of its proper divisors (6335588).

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

4425820 is a wasteful number, since it uses less digits than its factorization.

4425820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 4425820 is about 2103.7632946698. The cubic root of 4425820 is about 164.1841575954.

The spelling of 4425820 in words is "four million, four hundred twenty-five thousand, eight hundred twenty".