2279029780 has 12 divisors (see below), whose sum is σ = 4785962580. Its totient is φ = 911611904.

The previous prime is 2279029777. The next prime is 2279029787. The reversal of 2279029780 is 879209722.

2279029780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 257987844 + 2021041936 = 16062^2 + 44956^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2279029780.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2279029787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56975725 + ... + 56975764.

It is an arithmetic number, because the mean of its divisors is an integer number (398830215).

Almost surely, 2^2279029780 is an apocalyptic number.

2279029780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2279029780 is an abundant number, since it is smaller than the sum of its proper divisors (2506932800).

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

2279029780 is a wasteful number, since it uses less digits than its factorization.

2279029780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113951498 (or 113951496 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 2279029780 is about 47739.1849532436. The cubic root of 2279029780 is about 1315.9821545484.

The spelling of 2279029780 in words is "two billion, two hundred seventy-nine million, twenty-nine thousand, seven hundred eighty".