4449449309 has 8 divisors (see below), whose sum is σ = 4517470272. Its totient is φ = 4381771680.

The previous prime is 4449449299. The next prime is 4449449327. The reversal of 4449449309 is 9039449444.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4449449309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4449449369) 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, 59657 + ... + 111614.

It is an arithmetic number, because the mean of its divisors is an integer number (564683784).

Almost surely, 2^4449449309 is an apocalyptic number.

It is an amenable number.

4449449309 is a deficient number, since it is larger than the sum of its proper divisors (68020963).

4449449309 is a wasteful number, since it uses less digits than its factorization.

4449449309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171667.

The product of its (nonzero) digits is 2239488, while the sum is 50.

The square root of 4449449309 is about 66704.1925893718. The cubic root of 4449449309 is about 1644.7583042442.

The spelling of 4449449309 in words is "four billion, four hundred forty-nine million, four hundred forty-nine thousand, three hundred nine".