4002620220 has 72 divisors (see below), whose sum is σ = 12287607696. Its totient is φ = 1054501632.

The previous prime is 4002620197. The next prime is 4002620221. The reversal of 4002620220 is 220262004.

It is a happy number.

4002620220 is a `hidden beast` number, since 40 + 0 + 2 + 620 + 2 + 2 + 0 = 666.

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 = 4002620193 and 4002620202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4002620221) by changing a digit.

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, 119017 + ... + 148896.

It is an arithmetic number, because the mean of its divisors is an integer number (170661218).

Almost surely, 2^4002620220 is an apocalyptic number.

It is an amenable number.

4002620220 is an abundant number, since it is smaller than the sum of its proper divisors (8284987476).

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

4002620220 is a wasteful number, since it uses less digits than its factorization.

4002620220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268011 (or 268006 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 4002620220 is about 63266.2644700950. The cubic root of 4002620220 is about 1587.7475879779.

Adding to 4002620220 its reverse (220262004), we get a palindrome (4222882224).

The spelling of 4002620220 in words is "four billion, two million, six hundred twenty thousand, two hundred twenty".