4042004220 has 48 divisors (see below), whose sum is σ = 12575125920. Its totient is φ = 1077867648.

The previous prime is 4042004203. The next prime is 4042004231. The reversal of 4042004220 is 224002404.

4042004220 is a `hidden beast` number, since 40 + 4 + 200 + 422 + 0 = 666.

It is a super-2 number, since 2×4042004220² = 32675596228995616800, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 4042004193 and 4042004202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3742057 + ... + 3743136.

It is an arithmetic number, because the mean of its divisors is an integer number (261981790).

Almost surely, 2^4042004220 is an apocalyptic number.

It is an amenable number.

4042004220 is an abundant number, since it is smaller than the sum of its proper divisors (8533121700).

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

4042004220 is a wasteful number, since it uses less digits than its factorization.

4042004220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7485211 (or 7485203 counting only the distinct ones).

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

The square root of 4042004220 is about 63576.7584892467. The cubic root of 4042004220 is about 1592.9381769943.

Adding to 4042004220 its reverse (224002404), we get a palindrome (4266006624).

The spelling of 4042004220 in words is "four billion, forty-two million, four thousand, two hundred twenty".