304876138 has 12 divisors (see below), whose sum is σ = 531977922. Its totient is φ = 130661160.

The previous prime is 304876133. The next prime is 304876151. The reversal of 304876138 is 831678403.

It can be written as a sum of positive squares in only one way, i.e., 174847729 + 130028409 = 13223^2 + 11403^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 304876138.

It is not an unprimeable number, because it can be changed into a prime (304876133) 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 5 ways as a sum of consecutive naturals, for example, 1555393 + ... + 1555588.

Almost surely, 2^304876138 is an apocalyptic number.

304876138 is a deficient number, since it is larger than the sum of its proper divisors (227101784).

304876138 is a wasteful number, since it uses less digits than its factorization.

304876138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3110997 (or 3110990 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 304876138 is about 17460.7026777275. The cubic root of 304876138 is about 673.0404167113.

The spelling of 304876138 in words is "three hundred four million, eight hundred seventy-six thousand, one hundred thirty-eight".