7768220 has 24 divisors (see below), whose sum is σ = 16393104. Its totient is φ = 3092096.

The previous prime is 7768193. The next prime is 7768223. The reversal of 7768220 is 228677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7768223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3827 + ... + 5493.

It is an arithmetic number, because the mean of its divisors is an integer number (683046).

Almost surely, 2^7768220 is an apocalyptic number.

It is an amenable number.

7768220 is an abundant number, since it is smaller than the sum of its proper divisors (8624884).

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

7768220 is a wasteful number, since it uses less digits than its factorization.

7768220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909 (or 1907 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 7768220 is about 2787.1526689437. The cubic root of 7768220 is about 198.0495403705.

The spelling of 7768220 in words is "seven million, seven hundred sixty-eight thousand, two hundred twenty".