1012044144 has 20 divisors (see below), whose sum is σ = 2614447496. Its totient is φ = 337348032.

The previous prime is 1012044067. The next prime is 1012044157. The reversal of 1012044144 is 4414402101.

It is a self number, because there is not a number n which added to its sum of digits gives 1012044144.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10542079 + ... + 10542174.

Almost surely, 2^1012044144 is an apocalyptic number.

It is an amenable number.

1012044144 is an abundant number, since it is smaller than the sum of its proper divisors (1602403352).

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

1012044144 is a wasteful number, since it uses less digits than its factorization.

1012044144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21084264 (or 21084258 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1012044144 is about 31812.6412609830. The cubic root of 1012044144 is about 1003.9987037226.

Adding to 1012044144 its reverse (4414402101), we get a palindrome (5426446245).

The spelling of 1012044144 in words is "one billion, twelve million, forty-four thousand, one hundred forty-four".