243499472 has 20 divisors (see below), whose sum is σ = 476192736. Its totient is φ = 120611040.

The previous prime is 243499469. The next prime is 243499493. The reversal of 243499472 is 274994342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69404 + ... + 72827.

Almost surely, 2^243499472 is an apocalyptic number.

It is an amenable number.

243499472 is a deficient number, since it is larger than the sum of its proper divisors (232693264).

243499472 is a wasteful number, since it uses less digits than its factorization.

243499472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142346 (or 142340 counting only the distinct ones).

The product of its digits is 435456, while the sum is 44.

The square root of 243499472 is about 15604.4696161068. The cubic root of 243499472 is about 624.4524031337.

The spelling of 243499472 in words is "two hundred forty-three million, four hundred ninety-nine thousand, four hundred seventy-two".