2774820388 has 12 divisors (see below), whose sum is σ = 4856307120. Its totient is φ = 1387304072.

The previous prime is 2774820383. The next prime is 2774820403. The reversal of 2774820388 is 8830284772.

It is not an unprimeable number, because it can be changed into a prime (2774820383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78495 + ... + 108217.

It is an arithmetic number, because the mean of its divisors is an integer number (404692260).

Almost surely, 2^2774820388 is an apocalyptic number.

It is an amenable number.

2774820388 is a deficient number, since it is larger than the sum of its proper divisors (2081486732).

2774820388 is a wasteful number, since it uses less digits than its factorization.

2774820388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53066 (or 53064 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 49.

The square root of 2774820388 is about 52676.5639350176. The cubic root of 2774820388 is about 1405.2220598599. Note that the first 3 decimals are identical.

The spelling of 2774820388 in words is "two billion, seven hundred seventy-four million, eight hundred twenty thousand, three hundred eighty-eight".