4220020440 has 96 divisors (see below), whose sum is σ = 13869273600. Its totient is φ = 1112686080.

The previous prime is 4220020433. The next prime is 4220020477. The reversal of 4220020440 is 440200224.

4220020440 is a `hidden beast` number, since 4 + 2 + 200 + 20 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33816 + ... + 97895.

It is an arithmetic number, because the mean of its divisors is an integer number (144471600).

Almost surely, 2^4220020440 is an apocalyptic number.

4220020440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4220020440 is an abundant number, since it is smaller than the sum of its proper divisors (9649253160).

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

4220020440 is a wasteful number, since it uses less digits than its factorization.

4220020440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131817 (or 131810 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 4220020440 is about 64961.6843993442. The cubic root of 4220020440 is about 1615.9881985790.

Adding to 4220020440 its reverse (440200224), we get a palindrome (4660220664).

The spelling of 4220020440 in words is "four billion, two hundred twenty million, twenty thousand, four hundred forty".