304232421 has 8 divisors (see below), whose sum is σ = 407341440. Its totient is φ = 201972512.

The previous prime is 304232413. The next prime is 304232441. The reversal of 304232421 is 124232403.

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 304232421 - 2³ = 304232413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304232441) 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, 211440 + ... + 212873.

It is an arithmetic number, because the mean of its divisors is an integer number (50917680).

Almost surely, 2^304232421 is an apocalyptic number.

It is an amenable number.

304232421 is a deficient number, since it is larger than the sum of its proper divisors (103109019).

304232421 is a wasteful number, since it uses less digits than its factorization.

304232421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424555.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 304232421 is about 17442.2596299906. The cubic root of 304232421 is about 672.5663959726.

Adding to 304232421 its reverse (124232403), we get a palindrome (428464824).

The spelling of 304232421 in words is "three hundred four million, two hundred thirty-two thousand, four hundred twenty-one".