4449156397 has 8 divisors (see below), whose sum is σ = 5097185600. Its totient is φ = 3804236064.

The previous prime is 4449156389. The next prime is 4449156401. The reversal of 4449156397 is 7936519444.

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

It is a cyclic number.

It is not a de Polignac number, because 4449156397 - 2³ = 4449156389 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 (4449156097) 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, 774147 + ... + 779872.

It is an arithmetic number, because the mean of its divisors is an integer number (637148200).

Almost surely, 2^4449156397 is an apocalyptic number.

It is an amenable number.

4449156397 is a deficient number, since it is larger than the sum of its proper divisors (648029203).

4449156397 is a wasteful number, since it uses less digits than its factorization.

4449156397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554435.

The product of its digits is 3265920, while the sum is 52.

The square root of 4449156397 is about 66701.9969491169. The cubic root of 4449156397 is about 1644.7222113869.

The spelling of 4449156397 in words is "four billion, four hundred forty-nine million, one hundred fifty-six thousand, three hundred ninety-seven".