4147820 has 48 divisors (see below), whose sum is σ = 9289728. Its totient is φ = 1552320.

The previous prime is 4147799. The next prime is 4147837. The reversal of 4147820 is 287414.

It is a self number, because there is not a number n which added to its sum of digits gives 4147820.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32597 + ... + 32723.

It is an arithmetic number, because the mean of its divisors is an integer number (193536).

Almost surely, 2^4147820 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 4147820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4644864).

4147820 is an abundant number, since it is smaller than the sum of its proper divisors (5141908).

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

4147820 is a wasteful number, since it uses less digits than its factorization.

4147820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 4147820 is about 2036.6197485049. The cubic root of 4147820 is about 160.6719139562.

The spelling of 4147820 in words is "four million, one hundred forty-seven thousand, eight hundred twenty".