308134680 has 256 divisors, whose sum is σ = 1132185600. Its totient is φ = 65556480.

The previous prime is 308134667. The next prime is 308134691. The reversal of 308134680 is 86431803.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 791926 + ... + 792314.

It is an arithmetic number, because the mean of its divisors is an integer number (4422600).

Almost surely, 2^308134680 is an apocalyptic number.

308134680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 308134680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (566092800).

308134680 is an abundant number, since it is smaller than the sum of its proper divisors (824050920).

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

308134680 is a wasteful number, since it uses less digits than its factorization.

308134680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 308134680 is about 17553.7654080257. The cubic root of 308134680 is about 675.4297619845.

The spelling of 308134680 in words is "three hundred eight million, one hundred thirty-four thousand, six hundred eighty".