243274 has 4 divisors (see below), whose sum is σ = 364914. Its totient is φ = 121636.

The previous prime is 243263. The next prime is 243301. The reversal of 243274 is 472342.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 243049 + 225 = 493^2 + 15^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 2³ + 4³ + 2⁹ + 3¹¹ + 7 + 4⁸ .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60817 + ... + 60820.

2²⁴³²⁷⁴ is an apocalyptic number.

243274 is a deficient number, since it is larger than the sum of its proper divisors (121640).

243274 is a wasteful number, since it uses less digits than its factorization.

243274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121639.

The product of its digits is 1344, while the sum is 22.

The square root of 243274 is about 493.2281419384. The cubic root of 243274 is about 62.4259603247.

The spelling of 243274 in words is "two hundred forty-three thousand, two hundred seventy-four", and thus it is an iban number.