304428768 has 72 divisors (see below), whose sum is σ = 929609352. Its totient is φ = 86978304.

The previous prime is 304428739. The next prime is 304428781. The reversal of 304428768 is 867824403.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27655 + ... + 37062.

It is an arithmetic number, because the mean of its divisors is an integer number (12911241).

Almost surely, 2^304428768 is an apocalyptic number.

It is an amenable number.

304428768 is an abundant number, since it is smaller than the sum of its proper divisors (625180584).

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

304428768 is a wasteful number, since it uses less digits than its factorization.

304428768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64744 (or 64729 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The square root of 304428768 is about 17447.8872073383. The cubic root of 304428768 is about 672.7110529148.

The spelling of 304428768 in words is "three hundred four million, four hundred twenty-eight thousand, seven hundred sixty-eight".