320434444 has 12 divisors (see below), whose sum is σ = 611738568. Its totient is φ = 145652000.

The previous prime is 320434399. The next prime is 320434447. The reversal of 320434444 is 444434023.

It is not an unprimeable number, because it can be changed into a prime (320434447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3641257 + ... + 3641344.

It is an arithmetic number, because the mean of its divisors is an integer number (50978214).

Almost surely, 2^320434444 is an apocalyptic number.

It is an amenable number.

320434444 is a deficient number, since it is larger than the sum of its proper divisors (291304124).

320434444 is a wasteful number, since it uses less digits than its factorization.

320434444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7282616 (or 7282614 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

The square root of 320434444 is about 17900.6827802741. The cubic root of 320434444 is about 684.2997756925.

Adding to 320434444 its reverse (444434023), we get a palindrome (764868467).

The spelling of 320434444 in words is "three hundred twenty million, four hundred thirty-four thousand, four hundred forty-four".