306439874 has 8 divisors (see below), whose sum is σ = 495018300. Its totient is φ = 141433776.

The previous prime is 306439871. The next prime is 306439937. The reversal of 306439874 is 478934603.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 231496225 + 74943649 = 15215^2 + 8657^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (306439871) 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 3 ways as a sum of consecutive naturals, for example, 5893049 + ... + 5893100.

Almost surely, 2^306439874 is an apocalyptic number.

306439874 is a deficient number, since it is larger than the sum of its proper divisors (188578426).

306439874 is a wasteful number, since it uses less digits than its factorization.

306439874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11786164.

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 306439874 is about 17505.4241308230. The cubic root of 306439874 is about 674.1891490719.

The spelling of 306439874 in words is "three hundred six million, four hundred thirty-nine thousand, eight hundred seventy-four".