4901820 has 96 divisors (see below), whose sum is σ = 17127936. Its totient is φ = 1017600.

The previous prime is 4901807. The next prime is 4901849. The reversal of 4901820 is 281094.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 4090 + ... + 5150.

It is an arithmetic number, because the mean of its divisors is an integer number (178416).

Almost surely, 2^4901820 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 4901820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8563968).

4901820 is an abundant number, since it is smaller than the sum of its proper divisors (12226116).

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

4901820 is a wasteful number, since it uses less digits than its factorization.

4901820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091 (or 1089 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 4901820 is about 2214.0054200476. The cubic root of 4901820 is about 169.8709516595.

Subtracting from 4901820 its sum of digits (24), we obtain a square (4901796 = 2214²).

The spelling of 4901820 in words is "four million, nine hundred one thousand, eight hundred twenty".