2144210402 has 8 divisors (see below), whose sum is σ = 3227762412. Its totient is φ = 1068289600.

The previous prime is 2144210389. The next prime is 2144210417. The reversal of 2144210402 is 2040124412.

It can be written as a sum of positive squares in 2 ways, for example, as 2126224321 + 17986081 = 46111^2 + 4241^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1907099 + ... + 1908222.

Almost surely, 2^2144210402 is an apocalyptic number.

2144210402 is a deficient number, since it is larger than the sum of its proper divisors (1083552010).

2144210402 is a wasteful number, since it uses less digits than its factorization.

2144210402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3815604.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 2144210402 is about 46305.6195509789. The cubic root of 2144210402 is about 1289.5033246091.

Adding to 2144210402 its reverse (2040124412), we get a palindrome (4184334814).

The spelling of 2144210402 in words is "two billion, one hundred forty-four million, two hundred ten thousand, four hundred two".