240513242 has 4 divisors (see below), whose sum is σ = 360769866. Its totient is φ = 120256620.

The previous prime is 240513223. The next prime is 240513307. The reversal of 240513242 is 242315042.

It is a happy number.

240513242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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., 189090001 + 51423241 = 13751^2 + 7171^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60128309 + ... + 60128312.

Almost surely, 2^240513242 is an apocalyptic number.

240513242 is a deficient number, since it is larger than the sum of its proper divisors (120256624).

240513242 is a wasteful number, since it uses less digits than its factorization.

240513242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120256623.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 240513242 is about 15508.4893526094. The cubic root of 240513242 is about 621.8891752937.

Adding to 240513242 its reverse (242315042), we get a palindrome (482828284).

The spelling of 240513242 in words is "two hundred forty million, five hundred thirteen thousand, two hundred forty-two".