304132421 has 8 divisors (see below), whose sum is σ = 311451360. Its totient is φ = 296824752.

The previous prime is 304132403. The next prime is 304132447. The reversal of 304132421 is 124231403.

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 304132421 - 2¹⁰ = 304131397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 304132393 and 304132402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304132721) 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, 81290 + ... + 84948.

It is an arithmetic number, because the mean of its divisors is an integer number (38931420).

Almost surely, 2^304132421 is an apocalyptic number.

It is an amenable number.

304132421 is a deficient number, since it is larger than the sum of its proper divisors (7318939).

304132421 is a wasteful number, since it uses less digits than its factorization.

304132421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5635.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 304132421 is about 17439.3927933286. The cubic root of 304132421 is about 672.4926979210.

Adding to 304132421 its reverse (124231403), we get a palindrome (428363824).

The spelling of 304132421 in words is "three hundred four million, one hundred thirty-two thousand, four hundred twenty-one".