522300420 has 96 divisors (see below), whose sum is σ = 1628323200. Its totient is φ = 138989952.

The previous prime is 522300409. The next prime is 522300451. The reversal of 522300420 is 24003225.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 522300393 and 522300402.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 424366 + ... + 425594.

It is an arithmetic number, because the mean of its divisors is an integer number (16961700).

Almost surely, 2^522300420 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 522300420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (814161600).

522300420 is an abundant number, since it is smaller than the sum of its proper divisors (1106022780).

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

522300420 is a wasteful number, since it uses less digits than its factorization.

522300420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2034 (or 2026 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 522300420 is about 22853.8928850207. The cubic root of 522300420 is about 805.3292224881.

Adding to 522300420 its reverse (24003225), we get a palindrome (546303645).

The spelling of 522300420 in words is "five hundred twenty-two million, three hundred thousand, four hundred twenty".