1244061812 has 24 divisors (see below), whose sum is σ = 2596304256. Its totient is φ = 509987808.

The previous prime is 1244061809. The next prime is 1244061817. The reversal of 1244061812 is 2181604421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244061817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 965243 + ... + 966530.

It is an arithmetic number, because the mean of its divisors is an integer number (108179344).

Almost surely, 2^1244061812 is an apocalyptic number.

It is an amenable number.

1244061812 is an abundant number, since it is smaller than the sum of its proper divisors (1352242444).

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

1244061812 is a wasteful number, since it uses less digits than its factorization.

1244061812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931807 (or 1931805 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 1244061812 is about 35271.2604254512. The cubic root of 1244061812 is about 1075.5088449514.

The spelling of 1244061812 in words is "one billion, two hundred forty-four million, sixty-one thousand, eight hundred twelve".