320350642 has 8 divisors (see below), whose sum is σ = 484310016. Its totient is φ = 158913972.

The previous prime is 320350631. The next prime is 320350643. The reversal of 320350642 is 246053023.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (320350643) 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, 630358 + ... + 630865.

It is an arithmetic number, because the mean of its divisors is an integer number (60538752).

Almost surely, 2^320350642 is an apocalyptic number.

320350642 is a deficient number, since it is larger than the sum of its proper divisors (163959374).

320350642 is a wasteful number, since it uses less digits than its factorization.

320350642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261352.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 320350642 is about 17898.3418785093. The cubic root of 320350642 is about 684.2401163864.

The spelling of 320350642 in words is "three hundred twenty million, three hundred fifty thousand, six hundred forty-two".