2001400202 has 4 divisors (see below), whose sum is σ = 3002100306. Its totient is φ = 1000700100.

The previous prime is 2001400153. The next prime is 2001400211. The reversal of 2001400202 is 2020041002.

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., 1981051081 + 20349121 = 44509^2 + 4511^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500350049 + ... + 500350052.

Almost surely, 2^2001400202 is an apocalyptic number.

2001400202 is a deficient number, since it is larger than the sum of its proper divisors (1000700104).

2001400202 is a wasteful number, since it uses less digits than its factorization.

2001400202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000700103.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2001400202 is about 44737.0115452519. The cubic root of 2001400202 is about 1260.2150053017.

Adding to 2001400202 its reverse (2020041002), we get a palindrome (4021441204).

The spelling of 2001400202 in words is "two billion, one million, four hundred thousand, two hundred two".