4002420220 has 24 divisors (see below), whose sum is σ = 8600551344. Its totient is φ = 1563735936.

The previous prime is 4002420217. The next prime is 4002420259. The reversal of 4002420220 is 220242004.

It is a junction number, because it is equal to n+sod(n) for n = 4002420194 and 4002420203.

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 7 ways as a sum of consecutive naturals, for example, 2326129 + ... + 2327848.

It is an arithmetic number, because the mean of its divisors is an integer number (358356306).

Almost surely, 2^4002420220 is an apocalyptic number.

It is an amenable number.

4002420220 is an abundant number, since it is smaller than the sum of its proper divisors (4598131124).

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

4002420220 is a wasteful number, since it uses less digits than its factorization.

4002420220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4654029 (or 4654027 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 4002420220 is about 63264.6838291317. The cubic root of 4002420220 is about 1587.7211424006.

Adding to 4002420220 its reverse (220242004), we get a palindrome (4222662224).

The spelling of 4002420220 in words is "four billion, two million, four hundred twenty thousand, two hundred twenty".