304042303 has 4 divisors (see below), whose sum is σ = 304220488. Its totient is φ = 303864120.

The previous prime is 304042259. The next prime is 304042309. The reversal of 304042303 is 303240403.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-304042303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304042309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86508 + ... + 89953.

It is an arithmetic number, because the mean of its divisors is an integer number (76055122).

Almost surely, 2^304042303 is an apocalyptic number.

304042303 is a deficient number, since it is larger than the sum of its proper divisors (178185).

304042303 is a wasteful number, since it uses less digits than its factorization.

304042303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178184.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 304042303 is about 17436.8088536865. The cubic root of 304042303 is about 672.4262688706.

Adding to 304042303 its reverse (303240403), we get a palindrome (607282706).

The spelling of 304042303 in words is "three hundred four million, forty-two thousand, three hundred three".