304240225240 has 64 divisors (see below), whose sum is σ = 816346460160. Its totient is φ = 99775674240.

The previous prime is 304240225183. The next prime is 304240225291. The reversal of 304240225240 is 42522042403.

It is a super-2 number, since 2×304240225240² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 304240225199 and 304240225208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23614696 + ... + 23627575.

It is an arithmetic number, because the mean of its divisors is an integer number (12755413440).

Almost surely, 2^304240225240 is an apocalyptic number.

It is an amenable number.

304240225240 is an abundant number, since it is smaller than the sum of its proper divisors (512106234920).

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

304240225240 is a wasteful number, since it uses less digits than its factorization.

304240225240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47242312 (or 47242308 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 28.

Adding to 304240225240 its reverse (42522042403), we get a palindrome (346762267643).

The spelling of 304240225240 in words is "three hundred four billion, two hundred forty million, two hundred twenty-five thousand, two hundred forty".