1244204442 has 64 divisors (see below), whose sum is σ = 2995695360. Its totient is φ = 380503872.

The previous prime is 1244204431. The next prime is 1244204447. The reversal of 1244204442 is 2444024421.

1244204442 is a `hidden beast` number, since 12 + 4 + 4 + 204 + 442 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1244204447) 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 31 ways as a sum of consecutive naturals, for example, 111928 + ... + 122540.

It is an arithmetic number, because the mean of its divisors is an integer number (46807740).

Almost surely, 2^1244204442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1244204442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1497847680).

1244204442 is an abundant number, since it is smaller than the sum of its proper divisors (1751490918).

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

1244204442 is a wasteful number, since it uses less digits than its factorization.

1244204442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10804 (or 10798 counting only the distinct ones).

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

The square root of 1244204442 is about 35273.2822685953. The cubic root of 1244204442 is about 1075.5499452577.

Adding to 1244204442 its reverse (2444024421), we get a palindrome (3688228863).

The spelling of 1244204442 in words is "one billion, two hundred forty-four million, two hundred four thousand, four hundred forty-two".