4004440002 has 36 divisors (see below), whose sum is σ = 8985819570. Its totient is φ = 1288780416.

The previous prime is 4004439991. The next prime is 4004440003. The reversal of 4004440002 is 2000444004.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2226046761 + 1778393241 = 47181^2 + 42171^2 .

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

It is not an unprimeable number, because it can be changed into a prime (4004440003) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 117127 + ... + 147402.

Almost surely, 2^4004440002 is an apocalyptic number.

4004440002 is an abundant number, since it is smaller than the sum of its proper divisors (4981379568).

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

4004440002 is a wasteful number, since it uses less digits than its factorization.

4004440002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264595 (or 264563 counting only the distinct ones).

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

The square root of 4004440002 is about 63280.6447659946. The cubic root of 4004440002 is about 1587.9881734405.

Adding to 4004440002 its reverse (2000444004), we get a palindrome (6004884006).

The spelling of 4004440002 in words is "four billion, four million, four hundred forty thousand, two".