2129770790 has 96 divisors (see below), whose sum is σ = 4733717760. Its totient is φ = 686406336.

The previous prime is 2129770771. The next prime is 2129770793. The reversal of 2129770790 is 970779212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129770793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 663329 + ... + 666531.

It is an arithmetic number, because the mean of its divisors is an integer number (49309560).

Almost surely, 2^2129770790 is an apocalyptic number.

2129770790 is an abundant number, since it is smaller than the sum of its proper divisors (2603946970).

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

2129770790 is a wasteful number, since it uses less digits than its factorization.

2129770790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3306 (or 3299 counting only the distinct ones).

The product of its (nonzero) digits is 111132, while the sum is 44.

The square root of 2129770790 is about 46149.4397582463. The cubic root of 2129770790 is about 1286.6021973508.

The spelling of 2129770790 in words is "two billion, one hundred twenty-nine million, seven hundred seventy thousand, seven hundred ninety".