320998338 has 24 divisors (see below), whose sum is σ = 698151168. Its totient is φ = 106591032.

The previous prime is 320998319. The next prime is 320998387. The reversal of 320998338 is 833899023.

It is a junction number, because it is equal to n+sod(n) for n = 320998293 and 320998302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29170 + ... + 38637.

It is an arithmetic number, because the mean of its divisors is an integer number (29089632).

Almost surely, 2^320998338 is an apocalyptic number.

320998338 is an abundant number, since it is smaller than the sum of its proper divisors (377152830).

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

320998338 is a wasteful number, since it uses less digits than its factorization.

320998338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68078 (or 68075 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 320998338 is about 17916.4264852118. The cubic root of 320998338 is about 684.7009460574.

The spelling of 320998338 in words is "three hundred twenty million, nine hundred ninety-eight thousand, three hundred thirty-eight".