243285504 has 320 divisors, whose sum is σ = 862659072. Its totient is φ = 59473920.

The previous prime is 243285503. The next prime is 243285563. The reversal of 243285504 is 405582342.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243285503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14310904 + ... + 14310920.

Almost surely, 2^243285504 is an apocalyptic number.

243285504 is a gapful number since it is divisible by the number (24) 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 243285504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (431329536).

243285504 is an abundant number, since it is smaller than the sum of its proper divisors (619373568).

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

243285504 is an equidigital number, since it uses as much as digits as its factorization.

243285504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

The square root of 243285504 is about 15597.6121249376. The cubic root of 243285504 is about 624.2694431381.

The spelling of 243285504 in words is "two hundred forty-three million, two hundred eighty-five thousand, five hundred four".