4724420 has 24 divisors (see below), whose sum is σ = 10110744. Its totient is φ = 1853696.

The previous prime is 4724383. The next prime is 4724429. The reversal of 4724420 is 244274.

It can be written as a sum of positive squares in 4 ways, for example, as 1249924 + 3474496 = 1118^2 + 1864^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4724429) 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, 1169 + ... + 3288.

It is an arithmetic number, because the mean of its divisors is an integer number (421281).

Almost surely, 2^4724420 is an apocalyptic number.

It is an amenable number.

4724420 is an abundant number, since it is smaller than the sum of its proper divisors (5386324).

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

4724420 is a wasteful number, since it uses less digits than its factorization.

4724420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4519 (or 4517 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 4724420 is about 2173.5730951592. The cubic root of 4724420 is about 167.7964750039.

Adding to 4724420 its reverse (244274), we get a palindrome (4968694).

The spelling of 4724420 in words is "four million, seven hundred twenty-four thousand, four hundred twenty".