1244430002 has 4 divisors (see below), whose sum is σ = 1866645006. Its totient is φ = 622215000.

The previous prime is 1244429987. The next prime is 1244430053. The reversal of 1244430002 is 2000344421.

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., 1198475161 + 45954841 = 34619^2 + 6779^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311107499 + ... + 311107502.

Almost surely, 2^1244430002 is an apocalyptic number.

1244430002 is a deficient number, since it is larger than the sum of its proper divisors (622215004).

1244430002 is an equidigital number, since it uses as much as digits as its factorization.

1244430002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622215003.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1244430002 is about 35276.4794445251. The cubic root of 1244430002 is about 1075.6149362883.

Adding to 1244430002 its reverse (2000344421), we get a palindrome (3244774423).

The spelling of 1244430002 in words is "one billion, two hundred forty-four million, four hundred thirty thousand, two".