1244782244 has 6 divisors (see below), whose sum is σ = 2178368934. Its totient is φ = 622391120.

The previous prime is 1244782243. The next prime is 1244782247. The reversal of 1244782244 is 4422874421.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1126407844 + 118374400 = 33562^2 + 10880^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1244782198 and 1244782207.

It is not an unprimeable number, because it can be changed into a prime (1244782243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155597777 + ... + 155597784.

It is an arithmetic number, because the mean of its divisors is an integer number (363061489).

Almost surely, 2^1244782244 is an apocalyptic number.

It is an amenable number.

1244782244 is a deficient number, since it is larger than the sum of its proper divisors (933586690).

1244782244 is a wasteful number, since it uses less digits than its factorization.

1244782244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311195565 (or 311195563 counting only the distinct ones).

The product of its digits is 114688, while the sum is 38.

The square root of 1244782244 is about 35281.4716813230. The cubic root of 1244782244 is about 1075.7164127377.

The spelling of 1244782244 in words is "one billion, two hundred forty-four million, seven hundred eighty-two thousand, two hundred forty-four".