240405522 has 32 divisors (see below), whose sum is σ = 573391872. Its totient is φ = 65700624.

The previous prime is 240405521. The next prime is 240405523. The reversal of 240405522 is 225504042.

It is a happy number.

240405522 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (240405521) and next prime (240405523).

It is a junction number, because it is equal to n+sod(n) for n = 240405492 and 240405501.

It is not an unprimeable number, because it can be changed into a prime (240405521) 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 15 ways as a sum of consecutive naturals, for example, 123468 + ... + 125399.

It is an arithmetic number, because the mean of its divisors is an integer number (17918496).

Almost surely, 2^240405522 is an apocalyptic number.

240405522 is an abundant number, since it is smaller than the sum of its proper divisors (332986350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

240405522 is a wasteful number, since it uses less digits than its factorization.

240405522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248902.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 240405522 is about 15505.0160270798. The cubic root of 240405522 is about 621.7963184445.

Adding to 240405522 its reverse (225504042), we get a palindrome (465909564).

The spelling of 240405522 in words is "two hundred forty million, four hundred five thousand, five hundred twenty-two".