1244048512 has 128 divisors (see below), whose sum is σ = 2921443200. Its totient is φ = 516710400.

The previous prime is 1244048461. The next prime is 1244048551. The reversal of 1244048512 is 2158404421.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

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, 5339148 + ... + 5339380.

It is an arithmetic number, because the mean of its divisors is an integer number (22823775).

Almost surely, 2^1244048512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1244048512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1460721600).

1244048512 is an abundant number, since it is smaller than the sum of its proper divisors (1677394688).

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

1244048512 is a wasteful number, since it uses less digits than its factorization.

1244048512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 1244048512 is about 35271.0718861789. The cubic root of 1244048512 is about 1075.5050122591.

The spelling of 1244048512 in words is "one billion, two hundred forty-four million, forty-eight thousand, five hundred twelve".