240421042 has 24 divisors (see below), whose sum is σ = 373153284. Its totient is φ = 116171712.

The previous prime is 240421031. The next prime is 240421043. The reversal of 240421042 is 240124042.

240421042 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 120978001 + 119443041 = 10999^2 + 10929^2 .

It is not an unprimeable number, because it can be changed into a prime (240421043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 758268 + ... + 758584.

Almost surely, 2^240421042 is an apocalyptic number.

240421042 is a deficient number, since it is larger than the sum of its proper divisors (132732242).

240421042 is a wasteful number, since it uses less digits than its factorization.

240421042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670 (or 633 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 240421042 is about 15505.5165022001. The cubic root of 240421042 is about 621.8096987129.

Adding to 240421042 its reverse (240124042), we get a palindrome (480545084).

The spelling of 240421042 in words is "two hundred forty million, four hundred twenty-one thousand, forty-two".