4002220232 has 8 divisors (see below), whose sum is σ = 7504162950. Its totient is φ = 2001110112.

The previous prime is 4002220231. The next prime is 4002220237. The reversal of 4002220232 is 2320222004.

It can be written as a sum of positive squares in only one way, i.e., 3453442756 + 548777476 = 58766^2 + 23426^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 4002220232.

It is not an unprimeable number, because it can be changed into a prime (4002220231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250138757 + ... + 250138772.

Almost surely, 2^4002220232 is an apocalyptic number.

It is an amenable number.

4002220232 is a deficient number, since it is larger than the sum of its proper divisors (3501942718).

4002220232 is a wasteful number, since it uses less digits than its factorization.

4002220232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500277535 (or 500277531 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 4002220232 is about 63263.1032435179. The cubic root of 4002220232 is about 1587.6946975292.

Adding to 4002220232 its reverse (2320222004), we get a palindrome (6322442236).

The spelling of 4002220232 in words is "four billion, two million, two hundred twenty thousand, two hundred thirty-two".