521230422 has 16 divisors (see below), whose sum is σ = 1043919360. Its totient is φ = 173500392.

The previous prime is 521230403. The next prime is 521230469. The reversal of 521230422 is 224032125.

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, 56098 + ... + 64725.

It is an arithmetic number, because the mean of its divisors is an integer number (65244960).

Almost surely, 2^521230422 is an apocalyptic number.

521230422 is an abundant number, since it is smaller than the sum of its proper divisors (522688938).

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

521230422 is a wasteful number, since it uses less digits than its factorization.

521230422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121547.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 521230422 is about 22830.4713486165. The cubic root of 521230422 is about 804.7789071721.

Adding to 521230422 its reverse (224032125), we get a palindrome (745262547).

The spelling of 521230422 in words is "five hundred twenty-one million, two hundred thirty thousand, four hundred twenty-two".