304227840 has 160 divisors (see below), whose sum is σ = 1111714560. Its totient is φ = 69525504.

The previous prime is 304227827. The next prime is 304227841. The reversal of 304227840 is 48722403.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 304227798 and 304227807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304227841) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 50931 + ... + 56589.

It is an arithmetic number, because the mean of its divisors is an integer number (6948216).

Almost surely, 2^304227840 is an apocalyptic number.

304227840 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 304227840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (555857280).

304227840 is an abundant number, since it is smaller than the sum of its proper divisors (807486720).

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

304227840 is an equidigital number, since it uses as much as digits as its factorization.

304227840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5692 (or 5676 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 304227840 is about 17442.1283105016. The cubic root of 304227840 is about 672.5630202178.

The spelling of 304227840 in words is "three hundred four million, two hundred twenty-seven thousand, eight hundred forty".