4985820 has 96 divisors (see below), whose sum is σ = 17740800. Its totient is φ = 1138752.

The previous prime is 4985819. The next prime is 4985821. The reversal of 4985820 is 285894.

It is an interprime number because it is at equal distance from previous prime (4985819) and next prime (4985821).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4985821) 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 31 ways as a sum of consecutive naturals, for example, 3121 + ... + 4439.

It is an arithmetic number, because the mean of its divisors is an integer number (184800).

Almost surely, 2^4985820 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 4985820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8870400).

4985820 is an abundant number, since it is smaller than the sum of its proper divisors (12754980).

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

4985820 is a wasteful number, since it uses less digits than its factorization.

4985820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344 (or 1336 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 4985820 is about 2232.8949818565. The cubic root of 4985820 is about 170.8357918874.

The spelling of 4985820 in words is "four million, nine hundred eighty-five thousand, eight hundred twenty".