4220505440 has 24 divisors (see below), whose sum is σ = 9970944480. Its totient is φ = 1688202112.

The previous prime is 4220505431. The next prime is 4220505449. The reversal of 4220505440 is 445050224.

It is an interprime number because it is at equal distance from previous prime (4220505431) and next prime (4220505449).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220505449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13188920 + ... + 13189239.

It is an arithmetic number, because the mean of its divisors is an integer number (415456020).

Almost surely, 2^4220505440 is an apocalyptic number.

4220505440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4220505440 is an abundant number, since it is smaller than the sum of its proper divisors (5750439040).

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

4220505440 is a wasteful number, since it uses less digits than its factorization.

4220505440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26378174 (or 26378166 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 4220505440 is about 64965.4172618017. The cubic root of 4220505440 is about 1616.0501038283.

Adding to 4220505440 its reverse (445050224), we get a palindrome (4665555664).

The spelling of 4220505440 in words is "four billion, two hundred twenty million, five hundred five thousand, four hundred forty".