304142421 has 8 divisors (see below), whose sum is σ = 442389024. Its totient is φ = 184328720.

The previous prime is 304142383. The next prime is 304142431. The reversal of 304142421 is 124241403.

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 304142421 - 2¹¹ = 304140373 is a prime.

It is a super-2 number, since 2×304142421² = 185005224503482482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304142431) 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 7 ways as a sum of consecutive naturals, for example, 4608186 + ... + 4608251.

It is an arithmetic number, because the mean of its divisors is an integer number (55298628).

Almost surely, 2^304142421 is an apocalyptic number.

It is an amenable number.

304142421 is a deficient number, since it is larger than the sum of its proper divisors (138246603).

304142421 is a wasteful number, since it uses less digits than its factorization.

304142421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9216451.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 304142421 is about 17439.6794982018. The cubic root of 304142421 is about 672.5000684531.

Adding to 304142421 its reverse (124241403), we get a palindrome (428383824).

The spelling of 304142421 in words is "three hundred four million, one hundred forty-two thousand, four hundred twenty-one".