522270464 has 72 divisors (see below), whose sum is σ = 1131133248. Its totient is φ = 239697920.

The previous prime is 522270421. The next prime is 522270487. The reversal of 522270464 is 464072225.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 522270464.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176969 + ... + 179895.

It is an arithmetic number, because the mean of its divisors is an integer number (15710184).

Almost surely, 2^522270464 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 522270464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (565566624).

522270464 is an abundant number, since it is smaller than the sum of its proper divisors (608862784).

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

522270464 is a wasteful number, since it uses less digits than its factorization.

522270464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001 (or 2987 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 522270464 is about 22853.2374949371. The cubic root of 522270464 is about 805.3138259191.

The spelling of 522270464 in words is "five hundred twenty-two million, two hundred seventy thousand, four hundred sixty-four".