304041312 has 72 divisors (see below), whose sum is σ = 876854160. Its totient is φ = 99912960.

The previous prime is 304041293. The next prime is 304041317. The reversal of 304041312 is 213140403.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×304041312² = 184882238805362688, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304041317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13014 + ... + 27882.

It is an arithmetic number, because the mean of its divisors is an integer number (12178530).

Almost surely, 2^304041312 is an apocalyptic number.

304041312 is a gapful number since it is divisible by the number (32) 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 304041312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (438427080).

304041312 is an abundant number, since it is smaller than the sum of its proper divisors (572812848).

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

304041312 is a wasteful number, since it uses less digits than its factorization.

304041312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14956 (or 14945 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 304041312 is about 17436.7804367664. The cubic root of 304041312 is about 672.4255382977.

Adding to 304041312 its reverse (213140403), we get a palindrome (517181715).

Subtracting from 304041312 its reverse (213140403), we obtain a palindrome (90900909).

The spelling of 304041312 in words is "three hundred four million, forty-one thousand, three hundred twelve".