4405444002 has 12 divisors (see below), whose sum is σ = 9545128710. Its totient is φ = 1468481328.

The previous prime is 4405443983. The next prime is 4405444009. The reversal of 4405444002 is 2004445044.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4378601241 + 26842761 = 66171^2 + 5181^2 .

It is not an unprimeable number, because it can be changed into a prime (4405444009) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122373427 + ... + 122373462.

Almost surely, 2^4405444002 is an apocalyptic number.

4405444002 is an abundant number, since it is smaller than the sum of its proper divisors (5139684708).

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

4405444002 is a wasteful number, since it uses less digits than its factorization.

4405444002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244746897 (or 244746894 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 4405444002 is about 66373.5188309314. The cubic root of 4405444002 is about 1639.3180788266.

Adding to 4405444002 its reverse (2004445044), we get a palindrome (6409889046).

The spelling of 4405444002 in words is "four billion, four hundred five million, four hundred forty-four thousand, two".