304421125 has 16 divisors (see below), whose sum is σ = 402268464. Its totient is φ = 229209600.

The previous prime is 304421081. The next prime is 304421137. The reversal of 304421125 is 521124403.

It can be written as a sum of positive squares in 8 ways, for example, as 162358564 + 142062561 = 12742^2 + 11919^2 .

It is not a de Polignac number, because 304421125 - 2¹⁹ = 303896837 is a prime.

It is a super-3 number, since 3×304421125³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 304421096 and 304421105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69504 + ... + 73753.

It is an arithmetic number, because the mean of its divisors is an integer number (25141779).

Almost surely, 2^304421125 is an apocalyptic number.

It is an amenable number.

304421125 is a deficient number, since it is larger than the sum of its proper divisors (97847339).

304421125 is a wasteful number, since it uses less digits than its factorization.

304421125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143289 (or 143279 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 304421125 is about 17447.6681823102. The cubic root of 304421125 is about 672.7054231648.

Adding to 304421125 its reverse (521124403), we get a palindrome (825545528).

The spelling of 304421125 in words is "three hundred four million, four hundred twenty-one thousand, one hundred twenty-five".