304020355956 has 48 divisors (see below), whose sum is σ = 714951800640. Its totient is φ = 100544604160.

The previous prime is 304020355939. The next prime is 304020355957. The reversal of 304020355956 is 659553020403.

It is a happy number.

It is a super-2 number, since 2×304020355956² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304020355957) 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 15 ways as a sum of consecutive naturals, for example, 8214100 + ... + 8251028.

It is an arithmetic number, because the mean of its divisors is an integer number (14894829180).

Almost surely, 2^304020355956 is an apocalyptic number.

It is an amenable number.

304020355956 is an abundant number, since it is smaller than the sum of its proper divisors (410931444684).

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

304020355956 is a wasteful number, since it uses less digits than its factorization.

304020355956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42304 (or 42302 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 42.

The spelling of 304020355956 in words is "three hundred four billion, twenty million, three hundred fifty-five thousand, nine hundred fifty-six".