1144445412 has 24 divisors (see below), whose sum is σ = 2913134112. Its totient is φ = 346801600.

The previous prime is 1144445399. The next prime is 1144445437. The reversal of 1144445412 is 2145444411.

It is a self number, because there is not a number n which added to its sum of digits gives 1144445412.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4334889 + ... + 4335152.

It is an arithmetic number, because the mean of its divisors is an integer number (121380588).

Almost surely, 2^1144445412 is an apocalyptic number.

1144445412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1144445412 is an abundant number, since it is smaller than the sum of its proper divisors (1768688700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1144445412 is a wasteful number, since it uses less digits than its factorization.

1144445412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8670059 (or 8670057 counting only the distinct ones).

The product of its digits is 10240, while the sum is 30.

The square root of 1144445412 is about 33829.6528507166. The cubic root of 1144445412 is about 1046.0000231542. Note that the first 4 decimals are identical.

Adding to 1144445412 its reverse (2145444411), we get a palindrome (3289889823).

The spelling of 1144445412 in words is "one billion, one hundred forty-four million, four hundred forty-five thousand, four hundred twelve".