243401304 has 32 divisors (see below), whose sum is σ = 609016320. Its totient is φ = 81065376.

The previous prime is 243401299. The next prime is 243401363. The reversal of 243401304 is 403104342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30589 + ... + 37715.

It is an arithmetic number, because the mean of its divisors is an integer number (19031760).

Almost surely, 2^243401304 is an apocalyptic number.

243401304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

243401304 is an abundant number, since it is smaller than the sum of its proper divisors (365615016).

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

243401304 is a wasteful number, since it uses less digits than its factorization.

243401304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8559 (or 8555 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 243401304 is about 15601.3237899865. The cubic root of 243401304 is about 624.3684748432.

Adding to 243401304 its reverse (403104342), we get a palindrome (646505646).

The spelling of 243401304 in words is "two hundred forty-three million, four hundred one thousand, three hundred four".