243602 has 6 divisors (see below), whose sum is σ = 366453. Its totient is φ = 121452.

The previous prime is 243589. The next prime is 243613. The reversal of 243602 is 206342.

It can be written as a sum of positive squares in 2 ways, for example, as 229441 + 14161 = 479^2 + 119^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=349.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 243602.

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 2 ways as a sum of consecutive naturals, for example, 524 + ... + 872.

2²⁴³⁶⁰² is an apocalyptic number.

243602 is a deficient number, since it is larger than the sum of its proper divisors (122851).

243602 is an frugal number, since it uses more digits than its factorization.

243602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 243602 is about 493.5605332682. The cubic root of 243602 is about 62.4540034908.

Multiplying 243602 by its product of nonzero digits (288), we get a square (70157376 = 8376²).

Adding to 243602 its reverse (206342), we get a palindrome (449944).

The spelling of 243602 in words is "two hundred forty-three thousand, six hundred two".