243505482 has 96 divisors (see below), whose sum is σ = 572006400. Its totient is φ = 68856480.

The previous prime is 243505481. The next prime is 243505511. The reversal of 243505482 is 284505342.

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

It is not an unprimeable number, because it can be changed into a prime (243505481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1751769 + ... + 1751907.

It is an arithmetic number, because the mean of its divisors is an integer number (5958400).

Almost surely, 2^243505482 is an apocalyptic number.

243505482 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 243505482, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286003200).

243505482 is an abundant number, since it is smaller than the sum of its proper divisors (328500918).

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

243505482 is a wasteful number, since it uses less digits than its factorization.

243505482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 301 counting only the distinct ones).

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

The square root of 243505482 is about 15604.6621879488. The cubic root of 243505482 is about 624.4575406234.

The spelling of 243505482 in words is "two hundred forty-three million, five hundred five thousand, four hundred eighty-two".