243362556 has 72 divisors (see below), whose sum is σ = 644083440. Its totient is φ = 80341632.

The previous prime is 243362549. The next prime is 243362627. The reversal of 243362556 is 655263342.

243362556 is a `hidden beast` number, since 2 + 43 + 3 + 62 + 556 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 243362556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104800 + ... + 107096.

Almost surely, 2^243362556 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 243362556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322041720).

243362556 is an abundant number, since it is smaller than the sum of its proper divisors (400720884).

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

243362556 is a wasteful number, since it uses less digits than its factorization.

243362556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2425 (or 2411 counting only the distinct ones).

The product of its digits is 129600, while the sum is 36.

The square root of 243362556 is about 15600.0819228618. The cubic root of 243362556 is about 624.3353412031.

The spelling of 243362556 in words is "two hundred forty-three million, three hundred sixty-two thousand, five hundred fifty-six".