304024140 has 144 divisors (see below), whose sum is σ = 1064831040. Its totient is φ = 68774400.

The previous prime is 304024121. The next prime is 304024159. The reversal of 304024140 is 41420403.

It is an interprime number because it is at equal distance from previous prime (304024121) and next prime (304024159).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 126066 + ... + 128454.

It is an arithmetic number, because the mean of its divisors is an integer number (7394660).

Almost surely, 2^304024140 is an apocalyptic number.

304024140 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 304024140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (532415520).

304024140 is an abundant number, since it is smaller than the sum of its proper divisors (760806900).

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

304024140 is a wasteful number, since it uses less digits than its factorization.

304024140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2512 (or 2507 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 304024140 is about 17436.2880223974. The cubic root of 304024140 is about 672.4128787147.

Adding to 304024140 its reverse (41420403), we get a palindrome (345444543).

The spelling of 304024140 in words is "three hundred four million, twenty-four thousand, one hundred forty".