1444742325 has 60 divisors (see below), whose sum is σ = 2882073348. Its totient is φ = 711244800.

The previous prime is 1444742323. The next prime is 1444742359. The reversal of 1444742325 is 5232474441.

1444742325 is a `hidden beast` number, since 144 + 474 + 23 + 25 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 476723556 + 968018769 = 21834^2 + 31113^2 .

It is not a de Polignac number, because 1444742325 - 2¹ = 1444742323 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1444742325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444742323) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1116 + ... + 53765.

Almost surely, 2^1444742325 is an apocalyptic number.

1444742325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1444742325 is a deficient number, since it is larger than the sum of its proper divisors (1437331023).

1444742325 is a wasteful number, since it uses less digits than its factorization.

1444742325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54916 (or 54902 counting only the distinct ones).

The product of its digits is 107520, while the sum is 36.

The square root of 1444742325 is about 38009.7661792335. The cubic root of 1444742325 is about 1130.4815148392.

The spelling of 1444742325 in words is "one billion, four hundred forty-four million, seven hundred forty-two thousand, three hundred twenty-five".