1144803447 has 48 divisors (see below), whose sum is σ = 1776159840. Its totient is φ = 708424704.

The previous prime is 1144803389. The next prime is 1144803463. The reversal of 1144803447 is 7443084411.

It is a happy number.

It is not a de Polignac number, because 1144803447 - 2⁶ = 1144803383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144803467) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3657363 + ... + 3657675.

It is an arithmetic number, because the mean of its divisors is an integer number (37003330).

Almost surely, 2^1144803447 is an apocalyptic number.

1144803447 is a deficient number, since it is larger than the sum of its proper divisors (631356393).

1144803447 is a wasteful number, since it uses less digits than its factorization.

1144803447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704 (or 701 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 1144803447 is about 33834.9441701919. The cubic root of 1144803447 is about 1046.1090907040.

Adding to 1144803447 its reverse (7443084411), we get a palindrome (8587887858).

The spelling of 1144803447 in words is "one billion, one hundred forty-four million, eight hundred three thousand, four hundred forty-seven".