308468704820 has 24 divisors (see below), whose sum is σ = 647798167464. Its totient is φ = 123384836736.

The previous prime is 308468704813. The next prime is 308468704889. The reversal of 308468704820 is 28407864803.

It can be written as a sum of positive squares in 4 ways, for example, as 5218039696 + 303250665124 = 72236^2 + 550682^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 986714 + ... + 1261166.

It is an arithmetic number, because the mean of its divisors is an integer number (26991590311).

Almost surely, 2^308468704820 is an apocalyptic number.

It is an amenable number.

308468704820 is an abundant number, since it is smaller than the sum of its proper divisors (339329462644).

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

308468704820 is a wasteful number, since it uses less digits than its factorization.

308468704820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330659 (or 330657 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 50.

The spelling of 308468704820 in words is "three hundred eight billion, four hundred sixty-eight million, seven hundred four thousand, eight hundred twenty".