243662 has 8 divisors (see below), whose sum is σ = 381456. Its totient is φ = 116512.

The previous prime is 243647. The next prime is 243671. The reversal of 243662 is 266342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

243662 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 2603 + ... + 2694.

It is an arithmetic number, because the mean of its divisors is an integer number (47682).

2²⁴³⁶⁶² is an apocalyptic number.

243662 is a deficient number, since it is larger than the sum of its proper divisors (137794).

243662 is a wasteful number, since it uses less digits than its factorization.

243662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5322.

The product of its digits is 1728, while the sum is 23.

The square root of 243662 is about 493.6213123438. The cubic root of 243662 is about 62.4591306143.

The spelling of 243662 in words is "two hundred forty-three thousand, six hundred sixty-two".