240269 has 4 divisors (see below), whose sum is σ = 242844. Its totient is φ = 237696.

The previous prime is 240263. The next prime is 240271. The reversal of 240269 is 962042.

240269 = 282² + 283² + 284².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 962042 = 2 ⋅481021.

It can be written as a sum of positive squares in 2 ways, for example, as 114244 + 126025 = 338^2 + 355^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240269 is a prime.

It is a super-2 number, since 2×240269² = 115458384722, which contains 22 as substring.

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 240269.

It is not an unprimeable number, because it can be changed into a prime (240263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1142 + ... + 1335.

It is an arithmetic number, because the mean of its divisors is an integer number (60711).

2²⁴⁰²⁶⁹ is an apocalyptic number.

It is an amenable number.

240269 is a deficient number, since it is larger than the sum of its proper divisors (2575).

240269 is an equidigital number, since it uses as much as digits as its factorization.

240269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 240269 is about 490.1724186447. The cubic root of 240269 is about 62.1678593818.

The spelling of 240269 in words is "two hundred forty thousand, two hundred sixty-nine".