320044745 has 8 divisors (see below), whose sum is σ = 384155520. Its totient is φ = 255967920.

The previous prime is 320044717. The next prime is 320044789. The reversal of 320044745 is 547440023.

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

It is not a de Polignac number, because 320044745 - 2¹² = 320040649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22640 + ... + 33950.

It is an arithmetic number, because the mean of its divisors is an integer number (48019440).

Almost surely, 2^320044745 is an apocalyptic number.

It is an amenable number.

320044745 is a deficient number, since it is larger than the sum of its proper divisors (64110775).

320044745 is a wasteful number, since it uses less digits than its factorization.

320044745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16975.

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 320044745 is about 17889.7944370527. The cubic root of 320044745 is about 684.0222575489.

Adding to 320044745 its reverse (547440023), we get a palindrome (867484768).

The spelling of 320044745 in words is "three hundred twenty million, forty-four thousand, seven hundred forty-five".