304021140 has 48 divisors (see below), whose sum is σ = 852169920. Its totient is φ = 80985600.

The previous prime is 304021139. The next prime is 304021163. The reversal of 304021140 is 41120403.

304021140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69951 + ... + 74169.

It is an arithmetic number, because the mean of its divisors is an integer number (17753540).

Almost surely, 2^304021140 is an apocalyptic number.

304021140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

304021140 is an abundant number, since it is smaller than the sum of its proper divisors (548148780).

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

304021140 is a wasteful number, since it uses less digits than its factorization.

304021140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5432 (or 5430 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 304021140 is about 17436.2019947006. The cubic root of 304021140 is about 672.4106669985.

Adding to 304021140 its reverse (41120403), we get a palindrome (345141543).

The spelling of 304021140 in words is "three hundred four million, twenty-one thousand, one hundred forty".