1044120072 has 64 divisors (see below), whose sum is σ = 2764339200. Its totient is φ = 327723840.

The previous prime is 1044120071. The next prime is 1044120073. The reversal of 1044120072 is 2700214401.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1044120071) and next prime (1044120073).

It is not an unprimeable number, because it can be changed into a prime (1044120071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69297 + ... + 83007.

It is an arithmetic number, because the mean of its divisors is an integer number (43192800).

Almost surely, 2^1044120072 is an apocalyptic number.

1044120072 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 1044120072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1382169600).

1044120072 is an abundant number, since it is smaller than the sum of its proper divisors (1720219128).

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

1044120072 is a wasteful number, since it uses less digits than its factorization.

1044120072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13906 (or 13902 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 1044120072 is about 32312.8468569391. The cubic root of 1044120072 is about 1014.4955542983.

Adding to 1044120072 its reverse (2700214401), we get a palindrome (3744334473).

The spelling of 1044120072 in words is "one billion, forty-four million, one hundred twenty thousand, seventy-two".