520324430 has 16 divisors (see below), whose sum is σ = 936843840. Its totient is φ = 208072032.

The previous prime is 520324421. The next prime is 520324439. The reversal of 520324430 is 34423025.

It is an interprime number because it is at equal distance from previous prime (520324421) and next prime (520324439).

It is a junction number, because it is equal to n+sod(n) for n = 520324396 and 520324405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520324439) 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, 65852 + ... + 73328.

It is an arithmetic number, because the mean of its divisors is an integer number (58552740).

Almost surely, 2^520324430 is an apocalyptic number.

520324430 is a deficient number, since it is larger than the sum of its proper divisors (416519410).

520324430 is a wasteful number, since it uses less digits than its factorization.

520324430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14443.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 520324430 is about 22810.6209911085. The cubic root of 520324430 is about 804.3123533677.

Adding to 520324430 its reverse (34423025), we get a palindrome (554747455).

The spelling of 520324430 in words is "five hundred twenty million, three hundred twenty-four thousand, four hundred thirty".