4400444402 has 16 divisors (see below), whose sum is σ = 6622147224. Its totient is φ = 2193072000.

The previous prime is 4400444393. The next prime is 4400444417. The reversal of 4400444402 is 2044440044.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2569374721 + 1831069681 = 50689^2 + 42791^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1801502 + ... + 1803942.

Almost surely, 2^4400444402 is an apocalyptic number.

4400444402 is a deficient number, since it is larger than the sum of its proper divisors (2221702822).

4400444402 is a wasteful number, since it uses less digits than its factorization.

4400444402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005.

The product of its (nonzero) digits is 8192, while the sum is 26.

The square root of 4400444402 is about 66335.8455286431. The cubic root of 4400444402 is about 1638.6977072246.

Adding to 4400444402 its reverse (2044440044), we get a palindrome (6444884446).

The spelling of 4400444402 in words is "four billion, four hundred million, four hundred forty-four thousand, four hundred two".