1244410402 has 4 divisors (see below), whose sum is σ = 1866615606. Its totient is φ = 622205200.

The previous prime is 1244410379. The next prime is 1244410429. The reversal of 1244410402 is 2040144421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 644601321 + 599809081 = 25389^2 + 24491^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311102599 + ... + 311102602.

Almost surely, 2^1244410402 is an apocalyptic number.

1244410402 is a deficient number, since it is larger than the sum of its proper divisors (622205204).

1244410402 is an equidigital number, since it uses as much as digits as its factorization.

1244410402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622205203.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 1244410402 is about 35276.2016379315. The cubic root of 1244410402 is about 1075.6092892147.

Adding to 1244410402 its reverse (2040144421), we get a palindrome (3284554823).

The spelling of 1244410402 in words is "one billion, two hundred forty-four million, four hundred ten thousand, four hundred two".