304200144 has 80 divisors (see below), whose sum is σ = 881461440. Its totient is φ = 100437120.

The previous prime is 304200137. The next prime is 304200157. The reversal of 304200144 is 441002403.

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

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, 42934 + ... + 49514.

It is an arithmetic number, because the mean of its divisors is an integer number (11018268).

Almost surely, 2^304200144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304200144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (440730720).

304200144 is an abundant number, since it is smaller than the sum of its proper divisors (577261296).

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

304200144 is a wasteful number, since it uses less digits than its factorization.

304200144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6705 (or 6693 counting only the distinct ones).

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

The square root of 304200144 is about 17441.3343526234. The cubic root of 304200144 is about 672.5426102178.

Adding to 304200144 its reverse (441002403), we get a palindrome (745202547).

The spelling of 304200144 in words is "three hundred four million, two hundred thousand, one hundred forty-four".