1244440202 has 4 divisors (see below), whose sum is σ = 1866660306. Its totient is φ = 622220100.

The previous prime is 1244440193. The next prime is 1244440297. The reversal of 1244440202 is 2020444421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2020444421 = 179 ⋅11287399.

It can be written as a sum of positive squares in only one way, i.e., 1045940281 + 198499921 = 32341^2 + 14089^2 .

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, 311110049 + ... + 311110052.

Almost surely, 2^1244440202 is an apocalyptic number.

1244440202 is a deficient number, since it is larger than the sum of its proper divisors (622220104).

1244440202 is an equidigital number, since it uses as much as digits as its factorization.

1244440202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622220103.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 1244440202 is about 35276.6240164787. The cubic root of 1244440202 is about 1075.6178750481.

Adding to 1244440202 its reverse (2020444421), we get a palindrome (3264884623).

The spelling of 1244440202 in words is "one billion, two hundred forty-four million, four hundred forty thousand, two hundred two".