320479918 has 8 divisors (see below), whose sum is σ = 524421720. Its totient is φ = 145672680.

The previous prime is 320479889. The next prime is 320479919. The reversal of 320479918 is 819974023.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320479919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7283613 + ... + 7283656.

It is an arithmetic number, because the mean of its divisors is an integer number (65552715).

Almost surely, 2^320479918 is an apocalyptic number.

320479918 is a deficient number, since it is larger than the sum of its proper divisors (203941802).

320479918 is a wasteful number, since it uses less digits than its factorization.

320479918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14567282.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 320479918 is about 17901.9529102274. The cubic root of 320479918 is about 684.3321446389.

The spelling of 320479918 in words is "three hundred twenty million, four hundred seventy-nine thousand, nine hundred eighteen".