243515424 has 48 divisors (see below), whose sum is σ = 640065888. Its totient is φ = 81065472.

The previous prime is 243515417. The next prime is 243515473. The reversal of 243515424 is 424515342.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 243515391 and 243515400.

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, 112884 + ... + 115020.

It is an arithmetic number, because the mean of its divisors is an integer number (13334706).

Almost surely, 2^243515424 is an apocalyptic number.

243515424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

243515424 is an abundant number, since it is smaller than the sum of its proper divisors (396550464).

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

243515424 is a wasteful number, since it uses less digits than its factorization.

243515424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3337 (or 3329 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The square root of 243515424 is about 15604.9807433396. The cubic root of 243515424 is about 624.4660390938.

The spelling of 243515424 in words is "two hundred forty-three million, five hundred fifteen thousand, four hundred twenty-four".