304247447 has 8 divisors (see below), whose sum is σ = 349794816. Its totient is φ = 259220952.

The previous prime is 304247431. The next prime is 304247491. The reversal of 304247447 is 744742403.

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

It is a cyclic number.

It is not a de Polignac number, because 304247447 - 2⁴ = 304247431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304247947) 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 7 ways as a sum of consecutive naturals, for example, 128963 + ... + 131300.

It is an arithmetic number, because the mean of its divisors is an integer number (43724352).

Almost surely, 2^304247447 is an apocalyptic number.

304247447 is a deficient number, since it is larger than the sum of its proper divisors (45547369).

304247447 is a wasteful number, since it uses less digits than its factorization.

304247447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260437.

The product of its (nonzero) digits is 75264, while the sum is 35.

The square root of 304247447 is about 17442.6903601480. The cubic root of 304247447 is about 672.5774684461.

The spelling of 304247447 in words is "three hundred four million, two hundred forty-seven thousand, four hundred forty-seven".