521034430 has 16 divisors (see below), whose sum is σ = 1071842400. Its totient is φ = 178640352.

The previous prime is 521034403. The next prime is 521034431. The reversal of 521034430 is 34430125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521034431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3721605 + ... + 3721744.

It is an arithmetic number, because the mean of its divisors is an integer number (66990150).

Almost surely, 2^521034430 is an apocalyptic number.

521034430 is an abundant number, since it is smaller than the sum of its proper divisors (550807970).

521034430 is a wasteful number, since it uses less digits than its factorization.

521034430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7443363.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 521034430 is about 22826.1786114102. The cubic root of 521034430 is about 804.6780240855.

Adding to 521034430 its reverse (34430125), we get a palindrome (555464555).

The spelling of 521034430 in words is "five hundred twenty-one million, thirty-four thousand, four hundred thirty".