4724820 has 36 divisors (see below), whose sum is σ = 14332500. Its totient is φ = 1259904.

The previous prime is 4724813. The next prime is 4724831. The reversal of 4724820 is 284274.

It can be written as a sum of positive squares in 2 ways, for example, as 2702736 + 2022084 = 1644^2 + 1422^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12945 + ... + 13304.

It is an arithmetic number, because the mean of its divisors is an integer number (398125).

Almost surely, 2^4724820 is an apocalyptic number.

It is an amenable number.

4724820 is an abundant number, since it is smaller than the sum of its proper divisors (9607680).

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

4724820 is a wasteful number, since it uses less digits than its factorization.

4724820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26264 (or 26259 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 4724820 is about 2173.6651076005. The cubic root of 4724820 is about 167.8012104491.

The spelling of 4724820 in words is "four million, seven hundred twenty-four thousand, eight hundred twenty".