2124340420 has 24 divisors (see below), whose sum is σ = 4478088384. Its totient is φ = 846503136.

The previous prime is 2124340411. The next prime is 2124340487. The reversal of 2124340420 is 240434212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2124340391 and 2124340400.

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, 196674 + ... + 207193.

It is an arithmetic number, because the mean of its divisors is an integer number (186587016).

Almost surely, 2^2124340420 is an apocalyptic number.

2124340420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2124340420 is an abundant number, since it is smaller than the sum of its proper divisors (2353747964).

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

2124340420 is a wasteful number, since it uses less digits than its factorization.

2124340420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404139 (or 404137 counting only the distinct ones).

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

The square root of 2124340420 is about 46090.5675816647. The cubic root of 2124340420 is about 1285.5077646301.

Adding to 2124340420 its reverse (240434212), we get a palindrome (2364774632).

The spelling of 2124340420 in words is "two billion, one hundred twenty-four million, three hundred forty thousand, four hundred twenty".