444157725 has 72 divisors (see below), whose sum is σ = 854945280. Its totient is φ = 202611200.

The previous prime is 444157667. The next prime is 444157729. The reversal of 444157725 is 527751444.

It is not a de Polignac number, because 444157725 - 2¹² = 444153629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444157729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 152836 + ... + 155714.

It is an arithmetic number, because the mean of its divisors is an integer number (11874240).

Almost surely, 2^444157725 is an apocalyptic number.

It is an amenable number.

444157725 is a deficient number, since it is larger than the sum of its proper divisors (410787555).

444157725 is a wasteful number, since it uses less digits than its factorization.

444157725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2931 (or 2915 counting only the distinct ones).

The product of its digits is 156800, while the sum is 39.

The square root of 444157725 is about 21075.0498220052. The cubic root of 444157725 is about 762.9786871511.

The spelling of 444157725 in words is "four hundred forty-four million, one hundred fifty-seven thousand, seven hundred twenty-five".