1044667872 has 144 divisors (see below), whose sum is σ = 3079544832. Its totient is φ = 335704320.

The previous prime is 1044667831. The next prime is 1044667903. The reversal of 1044667872 is 2787664401.

1044667872 is a `hidden beast` number, since 104 + 466 + 7 + 87 + 2 = 666.

1044667872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 960513 + ... + 961599.

It is an arithmetic number, because the mean of its divisors is an integer number (21385728).

Almost surely, 2^1044667872 is an apocalyptic number.

1044667872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1044667872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1539772416).

1044667872 is an abundant number, since it is smaller than the sum of its proper divisors (2034876960).

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

1044667872 is a wasteful number, since it uses less digits than its factorization.

1044667872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221 (or 1210 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 1044667872 is about 32321.3222501803. The cubic root of 1044667872 is about 1014.6729424225.

The spelling of 1044667872 in words is "one billion, forty-four million, six hundred sixty-seven thousand, eight hundred seventy-two".