4223240420 has 144 divisors (see below), whose sum is σ = 10744559280. Its totient is φ = 1388620800.

The previous prime is 4223240407. The next prime is 4223240443. The reversal of 4223240420 is 240423224.

It can be written as a sum of positive squares in 8 ways, for example, as 1030538404 + 3192702016 = 32102^2 + 56504^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5143610 + ... + 5144430.

It is an arithmetic number, because the mean of its divisors is an integer number (74614995).

Almost surely, 2^4223240420 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 4223240420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5372279640).

4223240420 is an abundant number, since it is smaller than the sum of its proper divisors (6521318860).

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

4223240420 is a wasteful number, since it uses less digits than its factorization.

4223240420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 4223240420 is about 64986.4633596875. The cubic root of 4223240420 is about 1616.3991070774.

Adding to 4223240420 its reverse (240423224), we get a palindrome (4463663644).

The spelling of 4223240420 in words is "four billion, two hundred twenty-three million, two hundred forty thousand, four hundred twenty".