2772840328 has 32 divisors (see below), whose sum is σ = 5222505600. Its totient is φ = 1380189888.

The previous prime is 2772840289. The next prime is 2772840377. The reversal of 2772840328 is 8230482772.

It is a happy number.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2736750 + ... + 2737762.

It is an arithmetic number, because the mean of its divisors is an integer number (163203300).

Almost surely, 2^2772840328 is an apocalyptic number.

It is an amenable number.

2772840328 is a deficient number, since it is larger than the sum of its proper divisors (2449665272).

2772840328 is a wasteful number, since it uses less digits than its factorization.

2772840328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221 (or 2217 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 43.

The square root of 2772840328 is about 52657.7660749105. The cubic root of 2772840328 is about 1404.8877335861.

The spelling of 2772840328 in words is "two billion, seven hundred seventy-two million, eight hundred forty thousand, three hundred twenty-eight".