305148680 has 16 divisors (see below), whose sum is σ = 686584620. Its totient is φ = 122059456.

The previous prime is 305148673. The next prime is 305148713. The reversal of 305148680 is 86841503.

It can be written as a sum of positive squares in 2 ways, for example, as 253510084 + 51638596 = 15922^2 + 7186^2 .

It is a super-3 number, since 3×305148680³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 305148680.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3814319 + ... + 3814398.

Almost surely, 2^305148680 is an apocalyptic number.

It is an amenable number.

305148680 is an abundant number, since it is smaller than the sum of its proper divisors (381435940).

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

305148680 is a wasteful number, since it uses less digits than its factorization.

305148680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7628728 (or 7628724 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 305148680 is about 17468.5053739580. The cubic root of 305148680 is about 673.2409103176.

The spelling of 305148680 in words is "three hundred five million, one hundred forty-eight thousand, six hundred eighty".