304223028 has 48 divisors (see below), whose sum is σ = 731351040. Its totient is φ = 98354304.

The previous prime is 304223027. The next prime is 304223053. The reversal of 304223028 is 820322403.

It is a junction number, because it is equal to n+sod(n) for n = 304222989 and 304223007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304223027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169158 + ... + 170946.

It is an arithmetic number, because the mean of its divisors is an integer number (15236480).

Almost surely, 2^304223028 is an apocalyptic number.

It is an amenable number.

304223028 is an abundant number, since it is smaller than the sum of its proper divisors (427128012).

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

304223028 is a wasteful number, since it uses less digits than its factorization.

304223028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216 (or 2214 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 304223028 is about 17441.9903680744. The cubic root of 304223028 is about 672.5594742019.

The spelling of 304223028 in words is "three hundred four million, two hundred twenty-three thousand, twenty-eight".