2144402120 has 32 divisors (see below), whose sum is σ = 5514177600. Its totient is φ = 735223488.

The previous prime is 2144402059. The next prime is 2144402147. The reversal of 2144402120 is 212044412.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2144402092 and 2144402101.

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 7 ways as a sum of consecutive naturals, for example, 3829010 + ... + 3829569.

It is an arithmetic number, because the mean of its divisors is an integer number (172318050).

Almost surely, 2^2144402120 is an apocalyptic number.

2144402120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2144402120 is an abundant number, since it is smaller than the sum of its proper divisors (3369775480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2144402120 is a wasteful number, since it uses less digits than its factorization.

2144402120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7658597 (or 7658593 counting only the distinct ones).

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

The square root of 2144402120 is about 46307.6896422182. The cubic root of 2144402120 is about 1289.5417557926.

Adding to 2144402120 its reverse (212044412), we get a palindrome (2356446532).

The spelling of 2144402120 in words is "two billion, one hundred forty-four million, four hundred two thousand, one hundred twenty".