2160420305 has 8 divisors (see below), whose sum is σ = 2629018944. Its totient is φ = 1703993200.

The previous prime is 2160420277. The next prime is 2160420307. The reversal of 2160420305 is 5030240612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2160420305 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2160420307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3042491 + ... + 3043200.

It is an arithmetic number, because the mean of its divisors is an integer number (328627368).

Almost surely, 2^2160420305 is an apocalyptic number.

It is an amenable number.

2160420305 is a deficient number, since it is larger than the sum of its proper divisors (468598639).

2160420305 is an equidigital number, since it uses as much as digits as its factorization.

2160420305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6085767.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2160420305 is about 46480.3216963910. The cubic root of 2160420305 is about 1292.7446529955.

Adding to 2160420305 its reverse (5030240612), we get a palindrome (7190660917).

The spelling of 2160420305 in words is "two billion, one hundred sixty million, four hundred twenty thousand, three hundred five".