305676660 has 48 divisors (see below), whose sum is σ = 906244416. Its totient is φ = 76718592.

The previous prime is 305676593. The next prime is 305676667. The reversal of 305676660 is 66676503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305676667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148822 + ... + 150861.

It is an arithmetic number, because the mean of its divisors is an integer number (18880092).

Almost surely, 2^305676660 is an apocalyptic number.

305676660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

305676660 is an abundant number, since it is smaller than the sum of its proper divisors (600567756).

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

305676660 is a wasteful number, since it uses less digits than its factorization.

305676660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299712 (or 299710 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 39.

The square root of 305676660 is about 17483.6111830480. The cubic root of 305676660 is about 673.6289757068.

The spelling of 305676660 in words is "three hundred five million, six hundred seventy-six thousand, six hundred sixty".