4449889994 has 16 divisors (see below), whose sum is σ = 7598232000. Its totient is φ = 1934734560.

The previous prime is 4449889993. The next prime is 4449890077. The reversal of 4449889994 is 4999889444.

It is not an unprimeable number, because it can be changed into a prime (4449889991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4396619 + ... + 4397630.

It is an arithmetic number, because the mean of its divisors is an integer number (474889500).

Almost surely, 2^4449889994 is an apocalyptic number.

4449889994 is a deficient number, since it is larger than the sum of its proper divisors (3148342006).

4449889994 is a wasteful number, since it uses less digits than its factorization.

4449889994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8794285.

The product of its digits is 107495424, while the sum is 68.

The square root of 4449889994 is about 66707.4957857061. The cubic root of 4449889994 is about 1644.8126028277.

The spelling of 4449889994 in words is "four billion, four hundred forty-nine million, eight hundred eighty-nine thousand, nine hundred ninety-four".