304223312420 has 24 divisors (see below), whose sum is σ = 666645868224. Its totient is φ = 116398484576.

The previous prime is 304223312399. The next prime is 304223312429. The reversal of 304223312420 is 24213322403.

It is a self number, because there is not a number n which added to its sum of digits gives 304223312420.

It is not an unprimeable number, because it can be changed into a prime (304223312429) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 330677054 + ... + 330677973.

It is an arithmetic number, because the mean of its divisors is an integer number (27776911176).

Almost surely, 2^304223312420 is an apocalyptic number.

It is an amenable number.

304223312420 is an abundant number, since it is smaller than the sum of its proper divisors (362422555804).

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

304223312420 is a wasteful number, since it uses less digits than its factorization.

304223312420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661355059 (or 661355057 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 304223312420 its reverse (24213322403), we get a palindrome (328436634823).

The spelling of 304223312420 in words is "three hundred four billion, two hundred twenty-three million, three hundred twelve thousand, four hundred twenty".