304422440 has 64 divisors (see below), whose sum is σ = 793877760. Its totient is φ = 102896640.

The previous prime is 304422409. The next prime is 304422467. The reversal of 304422440 is 44224403.

304422440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 12224 + ... + 27536.

It is an arithmetic number, because the mean of its divisors is an integer number (12404340).

Almost surely, 2^304422440 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 304422440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (396938880).

304422440 is an abundant number, since it is smaller than the sum of its proper divisors (489455320).

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

304422440 is a wasteful number, since it uses less digits than its factorization.

304422440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15402 (or 15398 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 304422440 is about 17447.7058663883. The cubic root of 304422440 is about 672.7063917861.

Adding to 304422440 its reverse (44224403), we get a palindrome (348646843).

The spelling of 304422440 in words is "three hundred four million, four hundred twenty-two thousand, four hundred forty".