243562 has 8 divisors (see below), whose sum is σ = 398592. Its totient is φ = 110700.

The previous prime is 243553. The next prime is 243577. The reversal of 243562 is 265342.

It is a happy number.

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 (22), and also a Moran number because the ratio is a prime number: 11071 = 243562 / (2 + 4 + 3 + 5 + 6 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5514 + ... + 5557.

It is an arithmetic number, because the mean of its divisors is an integer number (49824).

2²⁴³⁵⁶² is an apocalyptic number.

243562 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243562 is a deficient number, since it is larger than the sum of its proper divisors (155030).

243562 is a wasteful number, since it uses less digits than its factorization.

243562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11084.

The product of its digits is 1440, while the sum is 22.

The square root of 243562 is about 493.5200097260. The cubic root of 243562 is about 62.4505849407.

The spelling of 243562 in words is "two hundred forty-three thousand, five hundred sixty-two".