1244717042 has 4 divisors (see below), whose sum is σ = 1867075566. Its totient is φ = 622358520.

The previous prime is 1244717029. The next prime is 1244717099. The reversal of 1244717042 is 2407174421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2407174421 = 109 ⋅22084169.

It can be written as a sum of positive squares in only one way, i.e., 991557121 + 253159921 = 31489^2 + 15911^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311179259 + ... + 311179262.

Almost surely, 2^1244717042 is an apocalyptic number.

1244717042 is a deficient number, since it is larger than the sum of its proper divisors (622358524).

1244717042 is an equidigital number, since it uses as much as digits as its factorization.

1244717042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622358523.

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 1244717042 is about 35280.5476431418. The cubic root of 1244717042 is about 1075.6976303130.

The spelling of 1244717042 in words is "one billion, two hundred forty-four million, seven hundred seventeen thousand, forty-two".