4728420 has 72 divisors (see below), whose sum is σ = 14534520. Its totient is φ = 1244160.

The previous prime is 4728413. The next prime is 4728433. The reversal of 4728420 is 248274.

It can be written as a sum of positive squares in 4 ways, for example, as 1313316 + 3415104 = 1146^2 + 1848^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19500 + ... + 19740.

Almost surely, 2^4728420 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 4728420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7267260).

4728420 is an abundant number, since it is smaller than the sum of its proper divisors (9806100).

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

4728420 is a wasteful number, since it uses less digits than its factorization.

4728420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 360 counting only the distinct ones).

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

The square root of 4728420 is about 2174.4930443669. The cubic root of 4728420 is about 167.8438174336.

The spelling of 4728420 in words is "four million, seven hundred twenty-eight thousand, four hundred twenty".