4400400844 has 12 divisors (see below), whose sum is σ = 8800801744. Its totient is φ = 1885886064.

The previous prime is 4400400827. The next prime is 4400400857. The reversal of 4400400844 is 4480040044.

4400400844 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 157157173 = 4400400844 / (4 + 4 + 0 + 0 + 4 + 0 + 0 + 8 + 4 + 4).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78578559 + ... + 78578614.

Almost surely, 2^4400400844 is an apocalyptic number.

It is an amenable number.

4400400844 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4400400844 is a wasteful number, since it uses less digits than its factorization.

4400400844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157157184 (or 157157182 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

The square root of 4400400844 is about 66335.5172136315. The cubic root of 4400400844 is about 1638.6923002987.

Adding to 4400400844 its reverse (4480040044), we get a palindrome (8880440888).

The spelling of 4400400844 in words is "four billion, four hundred million, four hundred thousand, eight hundred forty-four".