1242444334 has 4 divisors (see below), whose sum is σ = 1863666504. Its totient is φ = 621222166.

The previous prime is 1242444311. The next prime is 1242444341. The reversal of 1242444334 is 4334442421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4334442421 = 139 ⋅31183039.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1242444296 and 1242444305.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 310611082 + ... + 310611085.

It is an arithmetic number, because the mean of its divisors is an integer number (465916626).

Almost surely, 2^1242444334 is an apocalyptic number.

1242444334 is a deficient number, since it is larger than the sum of its proper divisors (621222170).

1242444334 is an equidigital number, since it uses as much as digits as its factorization.

1242444334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621222169.

The product of its digits is 36864, while the sum is 31.

The square root of 1242444334 is about 35248.3238466739. The cubic root of 1242444334 is about 1075.0425320111.

Adding to 1242444334 its reverse (4334442421), we get a palindrome (5576886755).

The spelling of 1242444334 in words is "one billion, two hundred forty-two million, four hundred forty-four thousand, three hundred thirty-four".