304220430 has 24 divisors (see below), whose sum is σ = 790973352. Its totient is φ = 81125424.

The previous prime is 304220387. The next prime is 304220437. The reversal of 304220430 is 34022403.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304220437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1690024 + ... + 1690203.

It is an arithmetic number, because the mean of its divisors is an integer number (32957223).

Almost surely, 2^304220430 is an apocalyptic number.

304220430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

304220430 is an abundant number, since it is smaller than the sum of its proper divisors (486752922).

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

304220430 is a wasteful number, since it uses less digits than its factorization.

304220430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3380240 (or 3380237 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 304220430 is about 17441.9158924701. The cubic root of 304220430 is about 672.5575596914.

Adding to 304220430 its reverse (34022403), we get a palindrome (338242833).

The spelling of 304220430 in words is "three hundred four million, two hundred twenty thousand, four hundred thirty".