770246660 has 12 divisors (see below), whose sum is σ = 1617518028. Its totient is φ = 308098656.

The previous prime is 770246629. The next prime is 770246671. The reversal of 770246660 is 66642077.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 484704256 + 285542404 = 22016^2 + 16898^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 19256147 + ... + 19256186.

It is an arithmetic number, because the mean of its divisors is an integer number (134793169).

Almost surely, 2^770246660 is an apocalyptic number.

It is an amenable number.

770246660 is an abundant number, since it is smaller than the sum of its proper divisors (847271368).

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

770246660 is a wasteful number, since it uses less digits than its factorization.

770246660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38512342 (or 38512340 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 770246660 is about 27753.3179998356. The cubic root of 770246660 is about 916.6635051498.

The spelling of 770246660 in words is "seven hundred seventy million, two hundred forty-six thousand, six hundred sixty".