1242001444 has 48 divisors (see below), whose sum is σ = 2285599680. Its totient is φ = 589769600.

The previous prime is 1242001441. The next prime is 1242001451. The reversal of 1242001444 is 4441002421.

It is not an unprimeable number, because it can be changed into a prime (1242001441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2659299 + ... + 2659765.

It is an arithmetic number, because the mean of its divisors is an integer number (47616660).

Almost surely, 2^1242001444 is an apocalyptic number.

It is an amenable number.

1242001444 is a deficient number, since it is larger than the sum of its proper divisors (1043598236).

1242001444 is a wasteful number, since it uses less digits than its factorization.

1242001444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828 (or 826 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 1242001444 is about 35242.0408603134. The cubic root of 1242001444 is about 1074.9147778844.

Adding to 1242001444 its reverse (4441002421), we get a palindrome (5683003865).

The spelling of 1242001444 in words is "one billion, two hundred forty-two million, one thousand, four hundred forty-four".