4486396644 has 18 divisors (see below), whose sum is σ = 11340613830. Its totient is φ = 1495465536.

The previous prime is 4486396643. The next prime is 4486396661. The reversal of 4486396644 is 4466936844.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4477215744 + 9180900 = 66912^2 + 3030^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (4486396643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62311029 + ... + 62311100.

Almost surely, 2^4486396644 is an apocalyptic number.

It is an amenable number.

4486396644 is an abundant number, since it is smaller than the sum of its proper divisors (6854217186).

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

4486396644 is a wasteful number, since it uses less digits than its factorization.

4486396644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124622139 (or 124622134 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 54.

The square root of 4486396644 is about 66980.5691525535. The cubic root of 4486396644 is about 1649.2983418844.

The spelling of 4486396644 in words is "four billion, four hundred eighty-six million, three hundred ninety-six thousand, six hundred forty-four".