1244111242 has 32 divisors (see below), whose sum is σ = 2077280640. Its totient is φ = 554104320.

The previous prime is 1244111237. The next prime is 1244111261. The reversal of 1244111242 is 2421114421.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 218443 + ... + 224065.

It is an arithmetic number, because the mean of its divisors is an integer number (64915020).

Almost surely, 2^1244111242 is an apocalyptic number.

1244111242 is a deficient number, since it is larger than the sum of its proper divisors (833169398).

1244111242 is a wasteful number, since it uses less digits than its factorization.

1244111242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5838.

The product of its digits is 512, while the sum is 22.

The square root of 1244111242 is about 35271.9611306205. The cubic root of 1244111242 is about 1075.5230890717.

Adding to 1244111242 its reverse (2421114421), we get a palindrome (3665225663).

The spelling of 1244111242 in words is "one billion, two hundred forty-four million, one hundred eleven thousand, two hundred forty-two".