243505104 has 40 divisors (see below), whose sum is σ = 629662080. Its totient is φ = 81090048.

The previous prime is 243505099. The next prime is 243505147. The reversal of 243505104 is 401505342.

243505104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 69769 + ... + 73175.

It is an arithmetic number, because the mean of its divisors is an integer number (15741552).

Almost surely, 2^243505104 is an apocalyptic number.

243505104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

243505104 is an abundant number, since it is smaller than the sum of its proper divisors (386156976).

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

243505104 is a wasteful number, since it uses less digits than its factorization.

243505104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4907 (or 4901 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 243505104 is about 15604.6500761792. The cubic root of 243505104 is about 624.4572175026.

The spelling of 243505104 in words is "two hundred forty-three million, five hundred five thousand, one hundred four".