243944 has 8 divisors (see below), whose sum is σ = 457410. Its totient is φ = 121968.

The previous prime is 243931. The next prime is 243953. The reversal of 243944 is 449342.

It can be written as a sum of positive squares in only one way, i.e., 240100 + 3844 = 490^2 + 62^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 2⁹ + 4 + 9³ + 3¹¹ + 4² + 4⁸ .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 243944.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15239 + ... + 15254.

2²⁴³⁹⁴⁴ is an apocalyptic number.

It is an amenable number.

243944 is a deficient number, since it is larger than the sum of its proper divisors (213466).

243944 is a wasteful number, since it uses less digits than its factorization.

243944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30499 (or 30495 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 243944 is about 493.9068738133. The cubic root of 243944 is about 62.4832168269.

The spelling of 243944 in words is "two hundred forty-three thousand, nine hundred forty-four".