522240342 has 16 divisors (see below), whose sum is σ = 1124825520. Its totient is φ = 160689312.

The previous prime is 522240331. The next prime is 522240347. The reversal of 522240342 is 243042225.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522240347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3347617 + ... + 3347772.

It is an arithmetic number, because the mean of its divisors is an integer number (70301595).

Almost surely, 2^522240342 is an apocalyptic number.

522240342 is an abundant number, since it is smaller than the sum of its proper divisors (602585178).

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

522240342 is a wasteful number, since it uses less digits than its factorization.

522240342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6695407.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 522240342 is about 22852.5784540826. The cubic root of 522240342 is about 805.2983434369.

Adding to 522240342 its reverse (243042225), we get a palindrome (765282567).

The spelling of 522240342 in words is "five hundred twenty-two million, two hundred forty thousand, three hundred forty-two".