243475232 has 144 divisors (see below), whose sum is σ = 649406016. Its totient is φ = 87436800.

The previous prime is 243475223. The next prime is 243475237. The reversal of 243475232 is 232574342.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243475237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 352007 + ... + 352697.

It is an arithmetic number, because the mean of its divisors is an integer number (4509764).

Almost surely, 2^243475232 is an apocalyptic number.

243475232 is a gapful number since it is divisible by the number (22) 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 243475232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324703008).

243475232 is an abundant number, since it is smaller than the sum of its proper divisors (405930784).

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

243475232 is a wasteful number, since it uses less digits than its factorization.

243475232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743 (or 724 counting only the distinct ones).

The product of its digits is 40320, while the sum is 32.

The square root of 243475232 is about 15603.6928962345. The cubic root of 243475232 is about 624.4316813522.

The spelling of 243475232 in words is "two hundred forty-three million, four hundred seventy-five thousand, two hundred thirty-two".