2678630320 has 20 divisors (see below), whose sum is σ = 6227815680. Its totient is φ = 1071452096.

The previous prime is 2678630303. The next prime is 2678630351. The reversal of 2678630320 is 230368762.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 2678630320.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16741360 + ... + 16741519.

It is an arithmetic number, because the mean of its divisors is an integer number (311390784).

Almost surely, 2^2678630320 is an apocalyptic number.

2678630320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2678630320 is an abundant number, since it is smaller than the sum of its proper divisors (3549185360).

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

2678630320 is a wasteful number, since it uses less digits than its factorization.

2678630320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33482892 (or 33482886 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 2678630320 is about 51755.4858928017. The cubic root of 2678630320 is about 1388.7932386348.

The spelling of 2678630320 in words is "two billion, six hundred seventy-eight million, six hundred thirty thousand, three hundred twenty".