306945100 has 72 divisors (see below), whose sum is σ = 830446848. Its totient is φ = 95668800.

The previous prime is 306945073. The next prime is 306945103. The reversal of 306945100 is 1549603.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306945103) 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 23 ways as a sum of consecutive naturals, for example, 12232 + ... + 27631.

It is an arithmetic number, because the mean of its divisors is an integer number (11533984).

Almost surely, 2^306945100 is an apocalyptic number.

It is an amenable number.

306945100 is an abundant number, since it is smaller than the sum of its proper divisors (523501748).

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

306945100 is a wasteful number, since it uses less digits than its factorization.

306945100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39895 (or 39888 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 306945100 is about 17519.8487436393. The cubic root of 306945100 is about 674.5594564802.

The spelling of 306945100 in words is "three hundred six million, nine hundred forty-five thousand, one hundred".