243454556 has 12 divisors (see below), whose sum is σ = 436437120. Its totient is φ = 118758240.

The previous prime is 243454531. The next prime is 243454559. The reversal of 243454556 is 655454342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243454559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 742076 + ... + 742403.

It is an arithmetic number, because the mean of its divisors is an integer number (36369760).

Almost surely, 2^243454556 is an apocalyptic number.

It is an amenable number.

243454556 is a deficient number, since it is larger than the sum of its proper divisors (192982564).

243454556 is a wasteful number, since it uses less digits than its factorization.

243454556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484524 (or 1484522 counting only the distinct ones).

The product of its digits is 288000, while the sum is 38.

The square root of 243454556 is about 15603.0303466987. The cubic root of 243454556 is about 624.4140052012.

The spelling of 243454556 in words is "two hundred forty-three million, four hundred fifty-four thousand, five hundred fifty-six".