522240400 has 60 divisors (see below), whose sum is σ = 1368756144. Its totient is φ = 189904000.

The previous prime is 522240379. The next prime is 522240409. The reversal of 522240400 is 4042225.

It is not an unprimeable number, because it can be changed into a prime (522240409) 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 11 ways as a sum of consecutive naturals, for example, 54946 + ... + 63745.

Almost surely, 2^522240400 is an apocalyptic number.

522240400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

522240400 is an abundant number, since it is smaller than the sum of its proper divisors (846515744).

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

522240400 is a wasteful number, since it uses less digits than its factorization.

522240400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118720 (or 118709 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 522240400 is about 22852.5797230860. The cubic root of 522240400 is about 805.2983732491.

Adding to 522240400 its reverse (4042225), we get a palindrome (526282625).

The spelling of 522240400 in words is "five hundred twenty-two million, two hundred forty thousand, four hundred".