4020220004 has 12 divisors (see below), whose sum is σ = 7277984700. Its totient is φ = 1940795808.

The previous prime is 4020220003. The next prime is 4020220079. The reversal of 4020220004 is 4000220204.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1195084900 + 2825135104 = 34570^2 + 53152^2 .

It is not an unprimeable number, because it can be changed into a prime (4020220003) 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, 17328419 + ... + 17328650.

It is an arithmetic number, because the mean of its divisors is an integer number (606498725).

Almost surely, 2^4020220004 is an apocalyptic number.

It is an amenable number.

4020220004 is a deficient number, since it is larger than the sum of its proper divisors (3257764696).

4020220004 is a wasteful number, since it uses less digits than its factorization.

4020220004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34657102 (or 34657100 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 4020220004 is about 63405.2048652159. The cubic root of 4020220004 is about 1590.0713288940.

Adding to 4020220004 its reverse (4000220204), we get a palindrome (8020440208).

It can be divided in two parts, 40202 and 20004, that added together give a palindrome (60206).

The spelling of 4020220004 in words is "four billion, twenty million, two hundred twenty thousand, four".