200040002 has 18 divisors (see below), whose sum is σ = 306463563. Its totient is φ = 97929792.

The previous prime is 200039989. The next prime is 200040007.

Added to its reverse (200040002) it gives a square (400080004 = 20002²).

200040002 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 5 ways, for example, as 130667761 + 69372241 = 11431^2 + 8329^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=10001.

It is not an unprimeable number, because it can be changed into a prime (200040007) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1460078 + ... + 1460214.

Almost surely, 2^200040002 is an apocalyptic number.

200040002 is a deficient number, since it is larger than the sum of its proper divisors (106423561).

200040002 is an frugal number, since it uses more digits than its factorization.

200040002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

The square root of 200040002 is about 14143.5498372933. The cubic root of 200040002 is about 584.8425338960.

The spelling of 200040002 in words is "two hundred million, forty thousand, two".