304064421 has 4 divisors (see below), whose sum is σ = 405419232. Its totient is φ = 202709612.

The previous prime is 304064417. The next prime is 304064473. The reversal of 304064421 is 124460403.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 124460403 = 3 ⋅41486801.

It is a cyclic number.

It is not a de Polignac number, because 304064421 - 2² = 304064417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 304064391 and 304064400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304064221) 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, 50677401 + ... + 50677406.

It is an arithmetic number, because the mean of its divisors is an integer number (101354808).

Almost surely, 2^304064421 is an apocalyptic number.

It is an amenable number.

304064421 is a deficient number, since it is larger than the sum of its proper divisors (101354811).

304064421 is a wasteful number, since it uses less digits than its factorization.

304064421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101354810.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 304064421 is about 17437.4430751759. The cubic root of 304064421 is about 672.4425740179.

The spelling of 304064421 in words is "three hundred four million, sixty-four thousand, four hundred twenty-one".