1244454242 has 8 divisors (see below), whose sum is σ = 1874833500. Its totient is φ = 619509744.

The previous prime is 1244454223. The next prime is 1244454251. The reversal of 1244454242 is 2424544421.

It can be written as a sum of positive squares in 2 ways, for example, as 998623201 + 245831041 = 31601^2 + 15679^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1244454199 and 1244454208.

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, 1358117 + ... + 1359032.

Almost surely, 2^1244454242 is an apocalyptic number.

1244454242 is a deficient number, since it is larger than the sum of its proper divisors (630379258).

1244454242 is a wasteful number, since it uses less digits than its factorization.

1244454242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717380.

The product of its digits is 40960, while the sum is 32.

The square root of 1244454242 is about 35276.8230145516. The cubic root of 1244454242 is about 1075.6219201381.

Adding to 1244454242 its reverse (2424544421), we get a palindrome (3668998663).

The spelling of 1244454242 in words is "one billion, two hundred forty-four million, four hundred fifty-four thousand, two hundred forty-two".