240242 has 4 divisors (see below), whose sum is σ = 360366. Its totient is φ = 120120.

The previous prime is 240209. The next prime is 240257. The reversal of 240242 is 242042.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242042 = 2 ⋅121021.

It can be written as a sum of positive squares in only one way, i.e., 177241 + 63001 = 421^2 + 251^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60059 + ... + 60062.

2²⁴⁰²⁴² is an apocalyptic number.

240242 is a deficient number, since it is larger than the sum of its proper divisors (120124).

240242 is a wasteful number, since it uses less digits than its factorization.

240242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120123.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 240242 is about 490.1448765416. The cubic root of 240242 is about 62.1655306099.

Adding to 240242 its reverse (242042), we get a palindrome (482284).

The spelling of 240242 in words is "two hundred forty thousand, two hundred forty-two", and thus it is an iban number.