1244022004 has 12 divisors (see below), whose sum is σ = 2178197028. Its totient is φ = 621680000.

The previous prime is 1244022001. The next prime is 1244022049. The reversal of 1244022004 is 4002204421.

It can be written as a sum of positive squares in 2 ways, for example, as 420332004 + 823690000 = 20502^2 + 28700^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244022001) 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 3 ways as a sum of consecutive naturals, for example, 74197 + ... + 89404.

It is an arithmetic number, because the mean of its divisors is an integer number (181516419).

Almost surely, 2^1244022004 is an apocalyptic number.

It is an amenable number.

1244022004 is a deficient number, since it is larger than the sum of its proper divisors (934175024).

1244022004 is a wasteful number, since it uses less digits than its factorization.

1244022004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165506 (or 165504 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 1244022004 is about 35270.6961088096. The cubic root of 1244022004 is about 1075.4973733047.

Adding to 1244022004 its reverse (4002204421), we get a palindrome (5246226425).

The spelling of 1244022004 in words is "one billion, two hundred forty-four million, twenty-two thousand, four".