304428870 has 96 divisors (see below), whose sum is σ = 819486720. Its totient is φ = 78361920.

The previous prime is 304428853. The next prime is 304428871. The reversal of 304428870 is 78824403.

304428870 is a `hidden beast` number, since 304 + 4 + 288 + 70 = 666.

304428870 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304428871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 333715 + ... + 334625.

It is an arithmetic number, because the mean of its divisors is an integer number (8536320).

Almost surely, 2^304428870 is an apocalyptic number.

304428870 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 304428870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (409743360).

304428870 is an abundant number, since it is smaller than the sum of its proper divisors (515057850).

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

304428870 is a wasteful number, since it uses less digits than its factorization.

304428870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050 (or 1047 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 304428870 is about 17447.8901303281. The cubic root of 304428870 is about 672.7111280463.

The spelling of 304428870 in words is "three hundred four million, four hundred twenty-eight thousand, eight hundred seventy".