1444631245 has 16 divisors (see below), whose sum is σ = 1775105280. Its totient is φ = 1128136384.

The previous prime is 1444631239. The next prime is 1444631263. The reversal of 1444631245 is 5421364441.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1444631245 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1444631245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83514 + ... + 99316.

It is an arithmetic number, because the mean of its divisors is an integer number (110944080).

Almost surely, 2^1444631245 is an apocalyptic number.

It is an amenable number.

1444631245 is a deficient number, since it is larger than the sum of its proper divisors (330474035).

1444631245 is a wasteful number, since it uses less digits than its factorization.

1444631245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16244.

The product of its digits is 46080, while the sum is 34.

The square root of 1444631245 is about 38008.3049477348. The cubic root of 1444631245 is about 1130.4525414823.

Adding to 1444631245 its reverse (5421364441), we get a palindrome (6865995686).

The spelling of 1444631245 in words is "one billion, four hundred forty-four million, six hundred thirty-one thousand, two hundred forty-five".