1244605042 has 8 divisors (see below), whose sum is σ = 1902132396. Its totient is φ = 610560912.

The previous prime is 1244605039. The next prime is 1244605067. The reversal of 1244605042 is 2405064421.

It can be written as a sum of positive squares in 2 ways, for example, as 1073283121 + 171321921 = 32761^2 + 13089^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1244605042.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5870673 + ... + 5870884.

Almost surely, 2^1244605042 is an apocalyptic number.

1244605042 is a deficient number, since it is larger than the sum of its proper divisors (657527354).

1244605042 is a wasteful number, since it uses less digits than its factorization.

1244605042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11741612.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 1244605042 is about 35278.9603304859. The cubic root of 1244605042 is about 1075.6653654838.

Adding to 1244605042 its reverse (2405064421), we get a palindrome (3649669463).

The spelling of 1244605042 in words is "one billion, two hundred forty-four million, six hundred five thousand, forty-two".