4408040644 has 24 divisors (see below), whose sum is σ = 8872243520. Its totient is φ = 1877125536.

The previous prime is 4408040599. The next prime is 4408040671. The reversal of 4408040644 is 4460408044.

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, 496974 + ... + 505765.

Almost surely, 2^4408040644 is an apocalyptic number.

It is an amenable number.

4408040644 is an abundant number, since it is smaller than the sum of its proper divisors (4464202876).

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

4408040644 is a wasteful number, since it uses less digits than its factorization.

4408040644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002907 (or 1002905 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 34.

The square root of 4408040644 is about 66393.0767776280. The cubic root of 4408040644 is about 1639.6400960186.

Adding to 4408040644 its reverse (4460408044), we get a palindrome (8868448688).

The spelling of 4408040644 in words is "four billion, four hundred eight million, forty thousand, six hundred forty-four".