243584242 has 16 divisors (see below), whose sum is σ = 399600864. Its totient is φ = 110440000.

The previous prime is 243584227. The next prime is 243584261. The reversal of 243584242 is 242485342.

243584242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 243584198 and 243584207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4984 + ... + 22627.

It is an arithmetic number, because the mean of its divisors is an integer number (24975054).

Almost surely, 2^243584242 is an apocalyptic number.

243584242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243584242 is a deficient number, since it is larger than the sum of its proper divisors (156016622).

243584242 is a wasteful number, since it uses less digits than its factorization.

243584242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28025.

The product of its digits is 61440, while the sum is 34.

The square root of 243584242 is about 15607.1855886960. The cubic root of 243584242 is about 624.5248587168.

It can be divided in two parts, 243 and 584242, that added together give a palindrome (584485).

The spelling of 243584242 in words is "two hundred forty-three million, five hundred eighty-four thousand, two hundred forty-two".