12800002 has 8 divisors (see below), whose sum is σ = 19719036. Its totient is φ = 6226992.

The previous prime is 12799987. The next prime is 12800009. The reversal of 12800002 is 20000821.

It can be written as a sum of positive squares in 2 ways, for example, as 12752041 + 47961 = 3571^2 + 219^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12800009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86413 + ... + 86560.

Almost surely, 2^12800002 is an apocalyptic number.

12800002 is a deficient number, since it is larger than the sum of its proper divisors (6919034).

12800002 is a wasteful number, since it uses less digits than its factorization.

12800002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173012.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 12800002 is about 3577.7090435081. The cubic root of 12800002 is about 233.9214312404.

Adding to 12800002 its reverse (20000821), we get a palindrome (32800823).

It can be divided in two parts, 1280000 and 2, that multiplied together give a 4-th power (2560000 = 40⁴).

The spelling of 12800002 in words is "twelve million, eight hundred thousand, two".