320434430 has 48 divisors (see below), whose sum is σ = 625449600. Its totient is φ = 118096704.

The previous prime is 320434399. The next prime is 320434447. The reversal of 320434430 is 34434023.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 320434396 and 320434405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132371 + ... + 134769.

It is an arithmetic number, because the mean of its divisors is an integer number (13030200).

Almost surely, 2^320434430 is an apocalyptic number.

320434430 is a deficient number, since it is larger than the sum of its proper divisors (305015170).

320434430 is a wasteful number, since it uses less digits than its factorization.

320434430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2481 (or 2462 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 320434430 is about 17900.6823892275. The cubic root of 320434430 is about 684.2997657266.

Adding to 320434430 its reverse (34434023), we get a palindrome (354868453).

The spelling of 320434430 in words is "three hundred twenty million, four hundred thirty-four thousand, four hundred thirty".