4784420 has 48 divisors (see below), whose sum is σ = 10629360. Its totient is φ = 1806336.

The previous prime is 4784419. The next prime is 4784431. The reversal of 4784420 is 244874.

It can be written as a sum of positive squares in 8 ways, for example, as 565504 + 4218916 = 752^2 + 2054^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a zygodrome in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42284 + ... + 42396.

It is an arithmetic number, because the mean of its divisors is an integer number (221445).

Almost surely, 2^4784420 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 4784420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5314680).

4784420 is an abundant number, since it is smaller than the sum of its proper divisors (5844940).

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

4784420 is a wasteful number, since it uses less digits than its factorization.

4784420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 4784420 is about 2187.3317078121. The cubic root of 4784420 is about 168.5038257811.

The spelling of 4784420 in words is "four million, seven hundred eighty-four thousand, four hundred twenty".