522366240 has 384 divisors, whose sum is σ = 1950842880. Its totient is φ = 116121600.

The previous prime is 522366239. The next prime is 522366253. The reversal of 522366240 is 42663225.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 522366198 and 522366207.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 4113057 + ... + 4113183.

It is an arithmetic number, because the mean of its divisors is an integer number (5080320).

Almost surely, 2^522366240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 522366240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (975421440).

522366240 is an abundant number, since it is smaller than the sum of its proper divisors (1428476640).

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

522366240 is a wasteful number, since it uses less digits than its factorization.

522366240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 522366240 is about 22855.3328569067. The cubic root of 522366240 is about 805.3630501098.

The spelling of 522366240 in words is "five hundred twenty-two million, three hundred sixty-six thousand, two hundred forty".