4220434440 has 48 divisors (see below), whose sum is σ = 13716413100. Its totient is φ = 1125449088.

The previous prime is 4220434429. The next prime is 4220434441. The reversal of 4220434440 is 444340224.

It is a happy number.

4220434440 is a `hidden beast` number, since 4 + 220 + 434 + 4 + 4 + 0 = 666.

4220434440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4144011876 + 76422564 = 64374^2 + 8742^2 .

It is a super-2 number, since 2×4220434440² = 35624133724676227200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4220434441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5861355 + ... + 5862074.

Almost surely, 2^4220434440 is an apocalyptic number.

4220434440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4220434440 is an abundant number, since it is smaller than the sum of its proper divisors (9495978660).

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

4220434440 is a wasteful number, since it uses less digits than its factorization.

4220434440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11723446 (or 11723439 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

The square root of 4220434440 is about 64964.8708149258. The cubic root of 4220434440 is about 1616.0410417067.

Adding to 4220434440 its reverse (444340224), we get a palindrome (4664774664).

The spelling of 4220434440 in words is "four billion, two hundred twenty million, four hundred thirty-four thousand, four hundred forty".