522641340 has 144 divisors (see below), whose sum is σ = 1719900000. Its totient is φ = 127701504.

The previous prime is 522641333. The next prime is 522641359. The reversal of 522641340 is 43146225.

522641340 is a `hidden beast` number, since 522 + 6 + 4 + 134 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 347911 + ... + 349409.

It is an arithmetic number, because the mean of its divisors is an integer number (11943750).

Almost surely, 2^522641340 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 522641340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (859950000).

522641340 is an abundant number, since it is smaller than the sum of its proper divisors (1197258660).

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

522641340 is a wasteful number, since it uses less digits than its factorization.

522641340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676 (or 1671 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 522641340 is about 22861.3503538177. The cubic root of 522641340 is about 805.5044046334.

Adding to 522641340 its reverse (43146225), we get a palindrome (565787565).

The spelling of 522641340 in words is "five hundred twenty-two million, six hundred forty-one thousand, three hundred forty".