522250440 has 64 divisors (see below), whose sum is σ = 1588844160. Its totient is φ = 137303040.

The previous prime is 522250427. The next prime is 522250447. The reversal of 522250440 is 44052225.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 522250440.

It is not an unprimeable number, because it can be changed into a prime (522250447) 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 15 ways as a sum of consecutive naturals, for example, 22129 + ... + 39168.

It is an arithmetic number, because the mean of its divisors is an integer number (24825690).

Almost surely, 2^522250440 is an apocalyptic number.

It is an amenable number.

522250440 is an abundant number, since it is smaller than the sum of its proper divisors (1066593720).

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

522250440 is a wasteful number, since it uses less digits than its factorization.

522250440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61382 (or 61378 counting only the distinct ones).

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

The square root of 522250440 is about 22852.7993908843. The cubic root of 522250440 is about 805.3035337996.

The spelling of 522250440 in words is "five hundred twenty-two million, two hundred fifty thousand, four hundred forty".