522220384 has 48 divisors (see below), whose sum is σ = 1200019968. Its totient is φ = 219042432.

The previous prime is 522220381. The next prime is 522220393. The reversal of 522220384 is 483022225.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522220381) 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, 14274 + ... + 35329.

It is an arithmetic number, because the mean of its divisors is an integer number (25000416).

Almost surely, 2^522220384 is an apocalyptic number.

It is an amenable number.

522220384 is an abundant number, since it is smaller than the sum of its proper divisors (677799584).

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

522220384 is a wasteful number, since it uses less digits than its factorization.

522220384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49667 (or 49659 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 522220384 is about 22852.1417814611. The cubic root of 522220384 is about 805.2880848467.

The spelling of 522220384 in words is "five hundred twenty-two million, two hundred twenty thousand, three hundred eighty-four".