4240423220 has 144 divisors (see below), whose sum is σ = 10545474240. Its totient is φ = 1425853440.

The previous prime is 4240423219. The next prime is 4240423283. The reversal of 4240423220 is 223240424.

It is a congruent number.

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, 2426387 + ... + 2428133.

It is an arithmetic number, because the mean of its divisors is an integer number (73232460).

Almost surely, 2^4240423220 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 4240423220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5272737120).

4240423220 is an abundant number, since it is smaller than the sum of its proper divisors (6305051020).

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

4240423220 is a wasteful number, since it uses less digits than its factorization.

4240423220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854 (or 1841 counting only the distinct ones).

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

The square root of 4240423220 is about 65118.5320780498. The cubic root of 4240423220 is about 1618.5883170208.

Adding to 4240423220 its reverse (223240424), we get a palindrome (4463663644).

The spelling of 4240423220 in words is "four billion, two hundred forty million, four hundred twenty-three thousand, two hundred twenty".