243266436 has 96 divisors (see below), whose sum is σ = 725903360. Its totient is φ = 69012000.

The previous prime is 243266363. The next prime is 243266503. The reversal of 243266436 is 634662342.

243266436 is a `hidden beast` number, since 2 + 4 + 3 + 2 + 6 + 643 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 243266436.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113091 + ... + 115221.

Almost surely, 2^243266436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243266436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362951680).

243266436 is an abundant number, since it is smaller than the sum of its proper divisors (482636924).

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

243266436 is a wasteful number, since it uses less digits than its factorization.

243266436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302 (or 2294 counting only the distinct ones).

The product of its digits is 124416, while the sum is 36.

The square root of 243266436 is about 15597.0008655510. Note that the first 3 decimals coincide. The cubic root of 243266436 is about 624.2531332463.

The spelling of 243266436 in words is "two hundred forty-three million, two hundred sixty-six thousand, four hundred thirty-six".