4449003157 has 4 divisors (see below), whose sum is σ = 4458912300. Its totient is φ = 4439094016.

The previous prime is 4449003151. The next prime is 4449003199. The reversal of 4449003157 is 7513009444.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2921834916 + 1527168241 = 54054^2 + 39079^2 .

It is a cyclic number.

It is not a de Polignac number, because 4449003157 - 2³ = 4449003149 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 (4449003151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4953898 + ... + 4954795.

It is an arithmetic number, because the mean of its divisors is an integer number (1114728075).

Almost surely, 2^4449003157 is an apocalyptic number.

It is an amenable number.

4449003157 is a deficient number, since it is larger than the sum of its proper divisors (9909143).

4449003157 is an equidigital number, since it uses as much as digits as its factorization.

4449003157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9909142.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 4449003157 is about 66700.8482479796. The cubic root of 4449003157 is about 1644.7033283970.

The spelling of 4449003157 in words is "four billion, four hundred forty-nine million, three thousand, one hundred fifty-seven".