1244115936 has 240 divisors, whose sum is σ = 4215214080. Its totient is φ = 352615680.

The previous prime is 1244115907. The next prime is 1244115941. The reversal of 1244115936 is 6395114421.

It is a happy number.

1244115936 is a `hidden beast` number, since 1 + 24 + 41 + 1 + 593 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1244115936.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3465325 + ... + 3465683.

It is an arithmetic number, because the mean of its divisors is an integer number (17563392).

Almost surely, 2^1244115936 is an apocalyptic number.

1244115936 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 1244115936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2107607040).

1244115936 is an abundant number, since it is smaller than the sum of its proper divisors (2971098144).

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

1244115936 is a wasteful number, since it uses less digits than its factorization.

1244115936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579 (or 562 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 1244115936 is about 35272.0276706628. The cubic root of 1244115936 is about 1075.5244417104.

The spelling of 1244115936 in words is "one billion, two hundred forty-four million, one hundred fifteen thousand, nine hundred thirty-six".