522136368 has 200 divisors, whose sum is σ = 1724139648. Its totient is φ = 151123968.

The previous prime is 522136361. The next prime is 522136411. The reversal of 522136368 is 863631225.

It is a happy number.

522136368 is a `hidden beast` number, since 5 + 2 + 2 + 13 + 636 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522136361) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 285505 + ... + 287327.

Almost surely, 2^522136368 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 522136368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (862069824).

522136368 is an abundant number, since it is smaller than the sum of its proper divisors (1202003280).

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

522136368 is a wasteful number, since it uses less digits than its factorization.

522136368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873 (or 1858 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 522136368 is about 22850.3034553154. The cubic root of 522136368 is about 805.2448970059.

The spelling of 522136368 in words is "five hundred twenty-two million, one hundred thirty-six thousand, three hundred sixty-eight".