2820435945 has 16 divisors (see below), whose sum is σ = 4534089792. Its totient is φ = 1497101760.

The previous prime is 2820435929. The next prime is 2820435991. The reversal of 2820435945 is 5495340282.

It is not a de Polignac number, because 2820435945 - 2⁴ = 2820435929 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2820435897 and 2820435906.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 442402 + ... + 448731.

It is an arithmetic number, because the mean of its divisors is an integer number (283380612).

Almost surely, 2^2820435945 is an apocalyptic number.

It is an amenable number.

2820435945 is a deficient number, since it is larger than the sum of its proper divisors (1713653847).

2820435945 is a wasteful number, since it uses less digits than its factorization.

2820435945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891352.

The product of its (nonzero) digits is 345600, while the sum is 42.

The square root of 2820435945 is about 53107.7766904245. The cubic root of 2820435945 is about 1412.8804428013.

The spelling of 2820435945 in words is "two billion, eight hundred twenty million, four hundred thirty-five thousand, nine hundred forty-five".