320853906 has 32 divisors (see below), whose sum is σ = 736012800. Its totient is φ = 103500720.

The previous prime is 320853901. The next prime is 320853919. The reversal of 320853906 is 609358023.

It is not an unprimeable number, because it can be changed into a prime (320853901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94161 + ... + 97508.

It is an arithmetic number, because the mean of its divisors is an integer number (23000400).

Almost surely, 2^320853906 is an apocalyptic number.

320853906 is an abundant number, since it is smaller than the sum of its proper divisors (415158894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320853906 is a wasteful number, since it uses less digits than its factorization.

320853906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191711 (or 191705 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 320853906 is about 17912.3953172098. The cubic root of 320853906 is about 684.5982377760.

The spelling of 320853906 in words is "three hundred twenty million, eight hundred fifty-three thousand, nine hundred six".