304228040 has 32 divisors (see below), whose sum is σ = 686033280. Its totient is φ = 121420992.

The previous prime is 304228033. The next prime is 304228069. The reversal of 304228040 is 40822403.

It is a junction number, because it is equal to n+sod(n) for n = 304227997 and 304228015.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10307 + ... + 26733.

It is an arithmetic number, because the mean of its divisors is an integer number (21438540).

Almost surely, 2^304228040 is an apocalyptic number.

It is an amenable number.

304228040 is an abundant number, since it is smaller than the sum of its proper divisors (381805240).

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

304228040 is a wasteful number, since it uses less digits than its factorization.

304228040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16901 (or 16897 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 304228040 is about 17442.1340437459. The cubic root of 304228040 is about 672.5631675992.

The spelling of 304228040 in words is "three hundred four million, two hundred twenty-eight thousand, forty".