4725820 has 24 divisors (see below), whose sum is σ = 10826928. Its totient is φ = 1718400.

The previous prime is 4725781. The next prime is 4725821. The reversal of 4725820 is 285274.

It is an Ulam number.

It is a d-powerful number, because it can be written as 4⁹ + 7 + 2¹⁸ + 5⁵ + 8⁴ + 2²² + 0 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4725821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10521 + ... + 10960.

It is an arithmetic number, because the mean of its divisors is an integer number (451122).

Almost surely, 2^4725820 is an apocalyptic number.

It is an amenable number.

4725820 is an abundant number, since it is smaller than the sum of its proper divisors (6101108).

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

4725820 is a wasteful number, since it uses less digits than its factorization.

4725820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21501 (or 21499 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 4725820 is about 2173.8951216653. The cubic root of 4725820 is about 167.8130478929.

It can be divided in two parts, 47258 and 20, that added together give a triangular number (47278 = T₃₀₇).

The spelling of 4725820 in words is "four million, seven hundred twenty-five thousand, eight hundred twenty".