2105420024 has 16 divisors (see below), whose sum is σ = 3957513120. Its totient is φ = 1050083200.

The previous prime is 2105420021. The next prime is 2105420033. The reversal of 2105420024 is 4200245012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2105419978 and 2105420005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105420021) by changing a digit.

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, 324944 + ... + 331359.

It is an arithmetic number, because the mean of its divisors is an integer number (247344570).

Almost surely, 2^2105420024 is an apocalyptic number.

It is an amenable number.

2105420024 is a deficient number, since it is larger than the sum of its proper divisors (1852093096).

2105420024 is a wasteful number, since it uses less digits than its factorization.

2105420024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656710 (or 656706 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2105420024 is about 45884.8561510222. The cubic root of 2105420024 is about 1281.6799280135.

Adding to 2105420024 its reverse (4200245012), we get a palindrome (6305665036).

The spelling of 2105420024 in words is "two billion, one hundred five million, four hundred twenty thousand, twenty-four".