2788631344 has 40 divisors (see below), whose sum is σ = 5507772480. Its totient is φ = 1367515968.

The previous prime is 2788631341. The next prime is 2788631353. The reversal of 2788631344 is 4431368872.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2788631294 and 2788631303.

It is not an unprimeable number, because it can be changed into a prime (2788631341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177039 + ... + 192145.

It is an arithmetic number, because the mean of its divisors is an integer number (137694312).

Almost surely, 2^2788631344 is an apocalyptic number.

It is an amenable number.

2788631344 is a deficient number, since it is larger than the sum of its proper divisors (2719141136).

2788631344 is a wasteful number, since it uses less digits than its factorization.

2788631344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15337 (or 15331 counting only the distinct ones).

The product of its digits is 774144, while the sum is 46.

The square root of 2788631344 is about 52807.4932561658. The cubic root of 2788631344 is about 1407.5495799055.

The spelling of 2788631344 in words is "two billion, seven hundred eighty-eight million, six hundred thirty-one thousand, three hundred forty-four".