304431420 has 24 divisors (see below), whose sum is σ = 852408144. Its totient is φ = 81181696.

The previous prime is 304431409. The next prime is 304431431. The reversal of 304431420 is 24134403.

It is an interprime number because it is at equal distance from previous prime (304431409) and next prime (304431431).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2536869 + ... + 2536988.

It is an arithmetic number, because the mean of its divisors is an integer number (35517006).

Almost surely, 2^304431420 is an apocalyptic number.

304431420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

304431420 is an abundant number, since it is smaller than the sum of its proper divisors (547976724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

304431420 is a wasteful number, since it uses less digits than its factorization.

304431420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5073869 (or 5073867 counting only the distinct ones).

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

The square root of 304431420 is about 17447.9632049131. The cubic root of 304431420 is about 672.7130063269.

Adding to 304431420 its reverse (24134403), we get a palindrome (328565823).

The spelling of 304431420 in words is "three hundred four million, four hundred thirty-one thousand, four hundred twenty".