2279806780 has 24 divisors (see below), whose sum is σ = 4788554400. Its totient is φ = 911739840.

The previous prime is 2279806721. The next prime is 2279806801. The reversal of 2279806780 is 876089722.

It is a congruent number.

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, 139225 + ... + 154735.

It is an arithmetic number, because the mean of its divisors is an integer number (199523100).

Almost surely, 2^2279806780 is an apocalyptic number.

2279806780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2279806780 is an abundant number, since it is smaller than the sum of its proper divisors (2508747620).

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

2279806780 is a wasteful number, since it uses less digits than its factorization.

2279806780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22869 (or 22867 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 2279806780 is about 47747.3222285816. The cubic root of 2279806780 is about 1316.1316921515.

The spelling of 2279806780 in words is "two billion, two hundred seventy-nine million, eight hundred six thousand, seven hundred eighty".