304220232 has 128 divisors (see below), whose sum is σ = 870912000. Its totient is φ = 98360640.

The previous prime is 304220221. The next prime is 304220261. The reversal of 304220232 is 232022403.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1272769 + ... + 1273007.

It is an arithmetic number, because the mean of its divisors is an integer number (6804000).

Almost surely, 2^304220232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304220232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435456000).

304220232 is an abundant number, since it is smaller than the sum of its proper divisors (566691768).

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

304220232 is a wasteful number, since it uses less digits than its factorization.

304220232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408 (or 398 counting only the distinct ones).

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

The square root of 304220232 is about 17441.9102164872. The cubic root of 304220232 is about 672.5574137814.

Adding to 304220232 its reverse (232022403), we get a palindrome (536242635).

The spelling of 304220232 in words is "three hundred four million, two hundred twenty thousand, two hundred thirty-two".