1244022444 has 72 divisors (see below), whose sum is σ = 3601095680. Its totient is φ = 354717792.

The previous prime is 1244022443. The next prime is 1244022539. The reversal of 1244022444 is 4442204421.

1244022444 is a `hidden beast` number, since 12 + 4 + 402 + 244 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (1244022443) 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 23 ways as a sum of consecutive naturals, for example, 127077 + ... + 136515.

Almost surely, 2^1244022444 is an apocalyptic number.

1244022444 is a gapful number since it is divisible by the number (14) 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 1244022444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1800547840).

1244022444 is an abundant number, since it is smaller than the sum of its proper divisors (2357073236).

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

1244022444 is a wasteful number, since it uses less digits than its factorization.

1244022444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9979 (or 9974 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

The square root of 1244022444 is about 35270.7023462817. The cubic root of 1244022444 is about 1075.4975001028.

Adding to 1244022444 its reverse (4442204421), we get a palindrome (5686226865).

The spelling of 1244022444 in words is "one billion, two hundred forty-four million, twenty-two thousand, four hundred forty-four".