2144400142 has 8 divisors (see below), whose sum is σ = 3217809816. Its totient is φ = 1071796872.

The previous prime is 2144400109. The next prime is 2144400151. The reversal of 2144400142 is 2410044412.

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

It is a congruent number.

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, 194908 + ... + 205615.

It is an arithmetic number, because the mean of its divisors is an integer number (402226227).

Almost surely, 2^2144400142 is an apocalyptic number.

2144400142 is a deficient number, since it is larger than the sum of its proper divisors (1073409674).

2144400142 is a wasteful number, since it uses less digits than its factorization.

2144400142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403202.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 2144400142 is about 46307.6682850692. The cubic root of 2144400142 is about 1289.5413593007.

Adding to 2144400142 its reverse (2410044412), we get a palindrome (4554444554).

The spelling of 2144400142 in words is "two billion, one hundred forty-four million, four hundred thousand, one hundred forty-two".