320109402 has 8 divisors (see below), whose sum is σ = 640218816. Its totient is φ = 106703132.

The previous prime is 320109389. The next prime is 320109407. The reversal of 320109402 is 204901023.

320109402 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

320109402 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (320109407) 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, 26675778 + ... + 26675789.

It is an arithmetic number, because the mean of its divisors is an integer number (80027352).

Almost surely, 2^320109402 is an apocalyptic number.

320109402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

320109402 is a wasteful number, since it uses less digits than its factorization.

320109402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53351572.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 320109402 is about 17891.6014375461. The cubic root of 320109402 is about 684.0683176179.

The spelling of 320109402 in words is "three hundred twenty million, one hundred nine thousand, four hundred two".