4042402220 has 96 divisors (see below), whose sum is σ = 9038433600. Its totient is φ = 1516196864.

The previous prime is 4042402219. The next prime is 4042402261. The reversal of 4042402220 is 222042404.

4042402220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4042402192 and 4042402201.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3288566 + ... + 3289794.

It is an arithmetic number, because the mean of its divisors is an integer number (94150350).

Almost surely, 2^4042402220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4042402220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4519216800).

4042402220 is an abundant number, since it is smaller than the sum of its proper divisors (4996031380).

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

4042402220 is a wasteful number, since it uses less digits than its factorization.

4042402220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427 (or 1425 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 4042402220 is about 63579.8884868478. Note that the first 3 decimals coincide. The cubic root of 4042402220 is about 1592.9904586969.

Adding to 4042402220 its reverse (222042404), we get a palindrome (4264444624).

The spelling of 4042402220 in words is "four billion, forty-two million, four hundred two thousand, two hundred twenty".