1241728012 has 36 divisors (see below), whose sum is σ = 2541997080. Its totient is φ = 529181184.

The previous prime is 1241727989. The next prime is 1241728013. The reversal of 1241728012 is 2108271421.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (1241728013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17388 + ... + 52780.

It is an arithmetic number, because the mean of its divisors is an integer number (70611030).

Almost surely, 2^1241728012 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 1241728012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1270998540).

1241728012 is an abundant number, since it is smaller than the sum of its proper divisors (1300269068).

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

1241728012 is a wasteful number, since it uses less digits than its factorization.

1241728012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35590 (or 35581 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 1241728012 is about 35238.1613027695. The cubic root of 1241728012 is about 1074.8358897128.

Adding to 1241728012 its reverse (2108271421), we get a palindrome (3349999433).

The spelling of 1241728012 in words is "one billion, two hundred forty-one million, seven hundred twenty-eight thousand, twelve".