1002440002 has 4 divisors (see below), whose sum is σ = 1503660006. Its totient is φ = 501220000.

The previous prime is 1002439979. The next prime is 1002440051. The reversal of 1002440002 is 2000442001.

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., 938135641 + 64304361 = 30629^2 + 8019^2 .

It is a Smith number, since the sum of its digits (13) 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, 250609999 + ... + 250610002.

Almost surely, 2^1002440002 is an apocalyptic number.

1002440002 is a deficient number, since it is larger than the sum of its proper divisors (501220004).

1002440002 is an equidigital number, since it uses as much as digits as its factorization.

1002440002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501220003.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 1002440002 is about 31661.3329157191. The cubic root of 1002440002 is about 1000.8126733831.

Adding to 1002440002 its reverse (2000442001), we get a palindrome (3002882003).

The spelling of 1002440002 in words is "one billion, two million, four hundred forty thousand, two".