2168260420 has 12 divisors (see below), whose sum is σ = 4553346924. Its totient is φ = 867304160.

The previous prime is 2168260417. The next prime is 2168260463. The reversal of 2168260420 is 240628612.

It can be written as a sum of positive squares in 2 ways, for example, as 1668559104 + 499701316 = 40848^2 + 22354^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54206491 + ... + 54206530.

It is an arithmetic number, because the mean of its divisors is an integer number (379445577).

Almost surely, 2^2168260420 is an apocalyptic number.

2168260420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2168260420 is an abundant number, since it is smaller than the sum of its proper divisors (2385086504).

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

2168260420 is a wasteful number, since it uses less digits than its factorization.

2168260420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108413030 (or 108413028 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 2168260420 is about 46564.5833225210. The cubic root of 2168260420 is about 1294.3065452446.

The spelling of 2168260420 in words is "two billion, one hundred sixty-eight million, two hundred sixty thousand, four hundred twenty".