304232040 has 384 divisors, whose sum is σ = 1226534400. Its totient is φ = 63866880.

The previous prime is 304232023. The next prime is 304232041. The reversal of 304232040 is 40232403.

304232040 is a `hidden beast` number, since 304 + 2 + 320 + 40 = 666.

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

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304232041) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 1680750 + ... + 1680930.

It is an arithmetic number, because the mean of its divisors is an integer number (3194100).

Almost surely, 2^304232040 is an apocalyptic number.

304232040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304232040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (613267200).

304232040 is an abundant number, since it is smaller than the sum of its proper divisors (922302360).

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

304232040 is a wasteful number, since it uses less digits than its factorization.

304232040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 250 counting only the distinct ones).

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

The square root of 304232040 is about 17442.2487082371. The cubic root of 304232040 is about 672.5661152136.

Adding to 304232040 its reverse (40232403), we get a palindrome (344464443).

The spelling of 304232040 in words is "three hundred four million, two hundred thirty-two thousand, forty".