243661036 has 12 divisors (see below), whose sum is σ = 427780080. Its totient is φ = 121438160.

The previous prime is 243661031. The next prime is 243661037. The reversal of 243661036 is 630166342.

It is a junction number, because it is equal to n+sod(n) for n = 243660989 and 243661007.

It is not an unprimeable number, because it can be changed into a prime (243661031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96691 + ... + 99178.

It is an arithmetic number, because the mean of its divisors is an integer number (35648340).

Almost surely, 2^243661036 is an apocalyptic number.

It is an amenable number.

243661036 is a deficient number, since it is larger than the sum of its proper divisors (184119044).

243661036 is a wasteful number, since it uses less digits than its factorization.

243661036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196184 (or 196182 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 243661036 is about 15609.6456077645. The cubic root of 243661036 is about 624.5904824512.

The spelling of 243661036 in words is "two hundred forty-three million, six hundred sixty-one thousand, thirty-six".