1244845056 has 352 divisors, whose sum is σ = 4207452928. Its totient is φ = 318504960.

The previous prime is 1244845051. The next prime is 1244845087. The reversal of 1244845056 is 6505484421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244845051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17052636 + ... + 17052708.

Almost surely, 2^1244845056 is an apocalyptic number.

1244845056 is a gapful number since it is divisible by the number (16) 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 1244845056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2103726464).

1244845056 is an abundant number, since it is smaller than the sum of its proper divisors (2962607872).

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

1244845056 is a wasteful number, since it uses less digits than its factorization.

1244845056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 39.

The square root of 1244845056 is about 35282.3618257055. The cubic root of 1244845056 is about 1075.7345060664.

The spelling of 1244845056 in words is "one billion, two hundred forty-four million, eight hundred forty-five thousand, fifty-six".