2678320436 has 24 divisors (see below), whose sum is σ = 5141737440. Its totient is φ = 1210613600.

The previous prime is 2678320429. The next prime is 2678320499. The reversal of 2678320436 is 6340238762.

It is a junction number, because it is equal to n+sod(n) for n = 2678320393 and 2678320402.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 162155 + ... + 177906.

It is an arithmetic number, because the mean of its divisors is an integer number (214239060).

Almost surely, 2^2678320436 is an apocalyptic number.

It is an amenable number.

2678320436 is a deficient number, since it is larger than the sum of its proper divisors (2463417004).

2678320436 is a wasteful number, since it uses less digits than its factorization.

2678320436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340255 (or 340253 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 41.

The square root of 2678320436 is about 51752.4920752615. The cubic root of 2678320436 is about 1388.7396812380.

The spelling of 2678320436 in words is "two billion, six hundred seventy-eight million, three hundred twenty thousand, four hundred thirty-six".