304455421020 has 48 divisors (see below), whose sum is σ = 852759936000. Its totient is φ = 81160992576.

The previous prime is 304455421019. The next prime is 304455421033. The reversal of 304455421020 is 20124554403.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 666052 + ... + 1025931.

It is an arithmetic number, because the mean of its divisors is an integer number (17765832000).

Almost surely, 2^304455421020 is an apocalyptic number.

304455421020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

304455421020 is an abundant number, since it is smaller than the sum of its proper divisors (548304514980).

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

304455421020 is a wasteful number, since it uses less digits than its factorization.

304455421020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694994 (or 1694992 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 304455421020 its reverse (20124554403), we get a palindrome (324579975423).

The spelling of 304455421020 in words is "three hundred four billion, four hundred fifty-five million, four hundred twenty-one thousand, twenty".