240749 has 4 divisors (see below), whose sum is σ = 253440. Its totient is φ = 228060.

The previous prime is 240743. The next prime is 240763. The reversal of 240749 is 947042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 240749 - 2⁴ = 240733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 240749.

It is not an unprimeable number, because it can be changed into a prime (240743) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6317 + ... + 6354.

It is an arithmetic number, because the mean of its divisors is an integer number (63360).

2²⁴⁰⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

240749 is a deficient number, since it is larger than the sum of its proper divisors (12691).

240749 is a wasteful number, since it uses less digits than its factorization.

240749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12690.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 240749 is about 490.6617979831. The cubic root of 240749 is about 62.2092306824.

It can be divided in two parts, 240 and 749, that added together give a palindrome (989).

The spelling of 240749 in words is "two hundred forty thousand, seven hundred forty-nine".