2026728680 has 32 divisors (see below), whose sum is σ = 4593437640. Its totient is φ = 804771840.

The previous prime is 2026728677. The next prime is 2026728701. The reversal of 2026728680 is 868276202.

It can be written as a sum of positive squares in 4 ways, for example, as 1485794116 + 540934564 = 38546^2 + 23258^2 .

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 7 ways as a sum of consecutive naturals, for example, 179441 + ... + 190400.

Almost surely, 2^2026728680 is an apocalyptic number.

2026728680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2026728680 is an abundant number, since it is smaller than the sum of its proper divisors (2566708960).

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

2026728680 is a wasteful number, since it uses less digits than its factorization.

2026728680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369989 (or 369985 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 2026728680 is about 45019.2034580800. The cubic root of 2026728680 is about 1265.5089017764.

The spelling of 2026728680 in words is "two billion, twenty-six million, seven hundred twenty-eight thousand, six hundred eighty".