768450820 has 24 divisors (see below), whose sum is σ = 1698681600. Its totient is φ = 291202272.

The previous prime is 768450791. The next prime is 768450829. The reversal of 768450820 is 28054867.

It is not an unprimeable number, because it can be changed into a prime (768450829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1010740 + ... + 1011499.

It is an arithmetic number, because the mean of its divisors is an integer number (70778400).

Almost surely, 2^768450820 is an apocalyptic number.

It is an amenable number.

768450820 is an abundant number, since it is smaller than the sum of its proper divisors (930230780).

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

768450820 is a wasteful number, since it uses less digits than its factorization.

768450820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022267 (or 2022265 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 768450820 is about 27720.9455105702. The cubic root of 768450820 is about 915.9505465187.

The spelling of 768450820 in words is "seven hundred sixty-eight million, four hundred fifty thousand, eight hundred twenty".