522189340 has 48 divisors (see below), whose sum is σ = 1164112992. Its totient is φ = 196079616.

The previous prime is 522189319. The next prime is 522189347. The reversal of 522189340 is 43981225.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 522189296 and 522189305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522189347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145447 + ... + 148993.

It is an arithmetic number, because the mean of its divisors is an integer number (24252354).

Almost surely, 2^522189340 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 522189340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (582056496).

522189340 is an abundant number, since it is smaller than the sum of its proper divisors (641923652).

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

522189340 is a wasteful number, since it uses less digits than its factorization.

522189340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4006 (or 4004 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 522189340 is about 22851.4625352514. The cubic root of 522189340 is about 805.2721274339.

The spelling of 522189340 in words is "five hundred twenty-two million, one hundred eighty-nine thousand, three hundred forty".