304749 has 8 divisors (see below), whose sum is σ = 451520. Its totient is φ = 203148.

The previous prime is 304739. The next prime is 304751. The reversal of 304749 is 947403.

It is not a de Polignac number, because 304749 - 2¹³ = 296557 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 11287 = 304749 / (3 + 0 + 4 + 7 + 4 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5617 + ... + 5670.

It is an arithmetic number, because the mean of its divisors is an integer number (56440).

2³⁰⁴⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

304749 is a deficient number, since it is larger than the sum of its proper divisors (146771).

304749 is a wasteful number, since it uses less digits than its factorization.

304749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11296 (or 11290 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 304749 is about 552.0407593647. The cubic root of 304749 is about 67.2946847663.

The spelling of 304749 in words is "three hundred four thousand, seven hundred forty-nine".