2768307220 has 48 divisors (see below), whose sum is σ = 6993624960. Its totient is φ = 899178624.

The previous prime is 2768307211. The next prime is 2768307247. The reversal of 2768307220 is 227038672.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2768307220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 517699 + ... + 523018.

It is an arithmetic number, because the mean of its divisors is an integer number (145700520).

Almost surely, 2^2768307220 is an apocalyptic number.

2768307220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2768307220 is an abundant number, since it is smaller than the sum of its proper divisors (4225317740).

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

2768307220 is a wasteful number, since it uses less digits than its factorization.

2768307220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040752 (or 1040750 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 2768307220 is about 52614.7053588633. The cubic root of 2768307220 is about 1404.1217342628.

The spelling of 2768307220 in words is "two billion, seven hundred sixty-eight million, three hundred seven thousand, two hundred twenty".