320345434 has 8 divisors (see below), whose sum is σ = 505808640. Its totient is φ = 151742556.

The previous prime is 320345429. The next prime is 320345447. The reversal of 320345434 is 434543023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4215034 + ... + 4215109.

It is an arithmetic number, because the mean of its divisors is an integer number (63226080).

Almost surely, 2^320345434 is an apocalyptic number.

320345434 is a deficient number, since it is larger than the sum of its proper divisors (185463206).

320345434 is a wasteful number, since it uses less digits than its factorization.

320345434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8430164.

The product of its (nonzero) digits is 17280, while the sum is 28.

The square root of 320345434 is about 17898.1963895807. The cubic root of 320345434 is about 684.2364084267.

Adding to 320345434 its reverse (434543023), we get a palindrome (754888457).

The spelling of 320345434 in words is "three hundred twenty million, three hundred forty-five thousand, four hundred thirty-four".