243004100 has 72 divisors (see below), whose sum is σ = 543715200. Its totient is φ = 94222720.

The previous prime is 243004093. The next prime is 243004159. The reversal of 243004100 is 1400342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 700127 + ... + 700473.

It is an arithmetic number, because the mean of its divisors is an integer number (7551600).

Almost surely, 2^243004100 is an apocalyptic number.

243004100 is a gapful number since it is divisible by the number (20) 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 243004100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271857600).

243004100 is an abundant number, since it is smaller than the sum of its proper divisors (300711100).

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

243004100 is a wasteful number, since it uses less digits than its factorization.

243004100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557 (or 550 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 243004100 is about 15588.5887751265. The cubic root of 243004100 is about 624.0286565023.

Adding to 243004100 its reverse (1400342), we get a palindrome (244404442).

The spelling of 243004100 in words is "two hundred forty-three million, four thousand, one hundred".