306670680 has 48 divisors (see below), whose sum is σ = 996680880. Its totient is φ = 81778752.

The previous prime is 306670673. The next prime is 306670681. The reversal of 306670680 is 86076603.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306670681) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 425572 + ... + 426291.

It is an arithmetic number, because the mean of its divisors is an integer number (20764185).

Almost surely, 2^306670680 is an apocalyptic number.

306670680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

306670680 is an abundant number, since it is smaller than the sum of its proper divisors (690010200).

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

306670680 is a wasteful number, since it uses less digits than its factorization.

306670680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851880 (or 851873 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 306670680 is about 17512.0153037850. The cubic root of 306670680 is about 674.3583697068.

The spelling of 306670680 in words is "three hundred six million, six hundred seventy thousand, six hundred eighty".