306055680 has 160 divisors (see below), whose sum is σ = 1118392704. Its totient is φ = 69943296.

The previous prime is 306055663. The next prime is 306055699. The reversal of 306055680 is 86550603.

It is a tau number, because it is divible by the number of its divisors (160).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50914 + ... + 56606.

Almost surely, 2^306055680 is an apocalyptic number.

306055680 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 306055680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (559196352).

306055680 is an abundant number, since it is smaller than the sum of its proper divisors (812337024).

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

306055680 is an equidigital number, since it uses as much as digits as its factorization.

306055680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5726 (or 5710 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 306055680 is about 17494.4471190147. The cubic root of 306055680 is about 673.9072800219.

The spelling of 306055680 in words is "three hundred six million, fifty-five thousand, six hundred eighty".