2144320402 has 8 divisors (see below), whose sum is σ = 3675977856. Its totient is φ = 918994452.

The previous prime is 2144320393. The next prime is 2144320403. The reversal of 2144320402 is 2040234412.

It is a happy number.

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 (2144320403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76582858 + ... + 76582885.

It is an arithmetic number, because the mean of its divisors is an integer number (459497232).

Almost surely, 2^2144320402 is an apocalyptic number.

2144320402 is a deficient number, since it is larger than the sum of its proper divisors (1531657454).

2144320402 is a wasteful number, since it uses less digits than its factorization.

2144320402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153165752.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2144320402 is about 46306.8072965520. The cubic root of 2144320402 is about 1289.5253751411.

Adding to 2144320402 its reverse (2040234412), we get a palindrome (4184554814).

The spelling of 2144320402 in words is "two billion, one hundred forty-four million, three hundred twenty thousand, four hundred two".