2208320766 has 32 divisors (see below), whose sum is σ = 4909186080. Its totient is φ = 735835968.

The previous prime is 2208320761. The next prime is 2208320789. The reversal of 2208320766 is 6670238022.

It is a self number, because there is not a number n which added to its sum of digits gives 2208320766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2208320761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186330 + ... + 197826.

It is an arithmetic number, because the mean of its divisors is an integer number (153412065).

Almost surely, 2^2208320766 is an apocalyptic number.

2208320766 is an abundant number, since it is smaller than the sum of its proper divisors (2700865314).

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

2208320766 is a wasteful number, since it uses less digits than its factorization.

2208320766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15065 (or 15059 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 2208320766 is about 46992.7735508344. The cubic root of 2208320766 is about 1302.2290684053.

Adding to 2208320766 its reverse (6670238022), we get a palindrome (8878558788).

It can be divided in two parts, 22083 and 20766, that added together give a square (42849 = 207²).

The spelling of 2208320766 in words is "two billion, two hundred eight million, three hundred twenty thousand, seven hundred sixty-six".