243203424 has 48 divisors (see below), whose sum is σ = 639439920. Its totient is φ = 80936960.

The previous prime is 243203413. The next prime is 243203437. The reversal of 243203424 is 424302342.

243203424 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 243203394 and 243203403.

It is a congruent number.

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, 71392 + ... + 74720.

It is an arithmetic number, because the mean of its divisors is an integer number (13321665).

Almost surely, 2^243203424 is an apocalyptic number.

243203424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

243203424 is an abundant number, since it is smaller than the sum of its proper divisors (396236496).

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

243203424 is a wasteful number, since it uses less digits than its factorization.

243203424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4103 (or 4095 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 243203424 is about 15594.9807309916. The cubic root of 243203424 is about 624.1992296117.

Adding to 243203424 its reverse (424302342), we get a palindrome (667505766).

The spelling of 243203424 in words is "two hundred forty-three million, two hundred three thousand, four hundred twenty-four".