304421053 has 4 divisors (see below), whose sum is σ = 304792668. Its totient is φ = 304049440.

The previous prime is 304421027. The next prime is 304421063. The reversal of 304421053 is 350124403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 350124403 = 18229 ⋅19207.

It can be written as a sum of positive squares in 2 ways, for example, as 117223929 + 187197124 = 10827^2 + 13682^2 .

It is a cyclic number.

It is not a de Polignac number, because 304421053 - 2¹³ = 304412861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304421003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184576 + ... + 186217.

It is an arithmetic number, because the mean of its divisors is an integer number (76198167).

Almost surely, 2^304421053 is an apocalyptic number.

It is an amenable number.

304421053 is a deficient number, since it is larger than the sum of its proper divisors (371615).

304421053 is an equidigital number, since it uses as much as digits as its factorization.

304421053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371614.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 304421053 is about 17447.6661189971. Note that the first 3 decimals coincide. The cubic root of 304421053 is about 672.7053701299.

Adding to 304421053 its reverse (350124403), we get a palindrome (654545456).

The spelling of 304421053 in words is "three hundred four million, four hundred twenty-one thousand, fifty-three".