4446142646 has 16 divisors (see below), whose sum is σ = 7384098240. Its totient is φ = 1990809480.

The previous prime is 4446142643. The next prime is 4446142669. The reversal of 4446142646 is 6462416444.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4446142643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1506716 + ... + 1509663.

It is an arithmetic number, because the mean of its divisors is an integer number (461506140).

Almost surely, 2^4446142646 is an apocalyptic number.

4446142646 is a deficient number, since it is larger than the sum of its proper divisors (2937955594).

4446142646 is a wasteful number, since it uses less digits than its factorization.

4446142646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3016459.

The product of its digits is 442368, while the sum is 41.

The square root of 4446142646 is about 66679.4019619252. The cubic root of 4446142646 is about 1644.3507624806.

The spelling of 4446142646 in words is "four billion, four hundred forty-six million, one hundred forty-two thousand, six hundred forty-six".