304277985 has 96 divisors (see below), whose sum is σ = 627753600. Its totient is φ = 138654720.

The previous prime is 304277957. The next prime is 304278001. The reversal of 304277985 is 589772403.

It is not a de Polignac number, because 304277985 - 2¹² = 304273889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 304277985.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 428811 + ... + 429519.

It is an arithmetic number, because the mean of its divisors is an integer number (6539100).

Almost surely, 2^304277985 is an apocalyptic number.

It is an amenable number.

304277985 is an abundant number, since it is smaller than the sum of its proper divisors (323475615).

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

304277985 is a wasteful number, since it uses less digits than its factorization.

304277985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768 (or 745 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 304277985 is about 17443.5657191986. The cubic root of 304277985 is about 672.5999703973.

The spelling of 304277985 in words is "three hundred four million, two hundred seventy-seven thousand, nine hundred eighty-five".