1044449157 has 8 divisors (see below), whose sum is σ = 1392754176. Its totient is φ = 696221792.

The previous prime is 1044449101. The next prime is 1044449183. The reversal of 1044449157 is 7519444401.

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 1044449157 - 2²³ = 1036060549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044449257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29788 + ... + 54554.

It is an arithmetic number, because the mean of its divisors is an integer number (174094272).

Almost surely, 2^1044449157 is an apocalyptic number.

It is an amenable number.

1044449157 is a deficient number, since it is larger than the sum of its proper divisors (348305019).

1044449157 is a wasteful number, since it uses less digits than its factorization.

1044449157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38827.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 1044449157 is about 32317.9386254755. The cubic root of 1044449157 is about 1014.6021257582.

The spelling of 1044449157 in words is "one billion, forty-four million, four hundred forty-nine thousand, one hundred fifty-seven".