4220420440 has 32 divisors (see below), whose sum is σ = 9548426160. Its totient is φ = 1678838400.

The previous prime is 4220420401. The next prime is 4220420447. The reversal of 4220420440 is 440240224.

4220420440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220420447) 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, 284226 + ... + 298705.

Almost surely, 2^4220420440 is an apocalyptic number.

4220420440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4220420440 is an abundant number, since it is smaller than the sum of its proper divisors (5328005720).

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

4220420440 is a wasteful number, since it uses less digits than its factorization.

4220420440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583123 (or 583119 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 4220420440 is about 64964.7630642951. The cubic root of 4220420440 is about 1616.0392547975.

Adding to 4220420440 its reverse (440240224), we get a palindrome (4660660664).

The spelling of 4220420440 in words is "four billion, two hundred twenty million, four hundred twenty thousand, four hundred forty".