304407346920 has 128 divisors (see below), whose sum is σ = 958437100800. Its totient is φ = 77196990464.

The previous prime is 304407346843. The next prime is 304407346921. The reversal of 304407346920 is 29643704403.

It is a happy number.

304407346920 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (304407346921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158716 + ... + 796244.

It is an arithmetic number, because the mean of its divisors is an integer number (7487789850).

Almost surely, 2^304407346920 is an apocalyptic number.

304407346920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304407346920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (479218550400).

304407346920 is an abundant number, since it is smaller than the sum of its proper divisors (654029753880).

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

304407346920 is a wasteful number, since it uses less digits than its factorization.

304407346920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637739 (or 637735 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 42.

The spelling of 304407346920 in words is "three hundred four billion, four hundred seven million, three hundred forty-six thousand, nine hundred twenty".